fix(ops/forgejo): update forgejo to 12.0.1, re-vendor gerrit patches, and fix emoji links

- Update Forgejo from 11.0.1 to 12.0.1, match upstream (see #80, cl 30121).
- Re-vendor and refresh Gerrit integration patches from lix to restore compatibility (patches broke @ cl 30628).
- Update dead emoji asset links to new locations, borrowed from lix infra (old URLs 404'd).
- Fixes build failure for ops.nixos.public01System (#169).

Context:
- Forgejo build broke after nixpkgs channel bump (cl 30628) due to outdated patches (#169).
- Emoji assets previously fetched from volpeon.ink are now archived or moved; new URLs and hashes are from lix infra.
- Gerrit patches are yoinked from lix again to restore code review tab and Gerrit CL linking (thanks emilylange).

Closes: #169
Refs: #80

Change-Id: I6a6a696423a6360b4056892e171df2baf6fa7206
Reviewed-on: https://cl.snix.dev/c/snix/+/30645
Tested-by: besadii
Autosubmit: Oleksandr Knyshuk <olk@disr.it>
Reviewed-by: Florian Klink <flokli@flokli.de>

third_party/lix_forgejo/0001-lix-Make-a-Code-Review-Gerrit-tab.patch

@@ -1,4 +1,4 @@
-From 0edb45d9dc9a2688c8b66a21df2a555f864fb81c Mon Sep 17 00:00:00 2001
+From 849657beb310dc099945f695b9d236ce0e649b27 Mon Sep 17 00:00:00 2001
 From: Jade Lovelace <software@lfcode.ca>
 Date: Thu, 16 May 2024 18:15:54 -0700
 Subject: [PATCH 1/2] lix: Make a Code Review (Gerrit) tab
@@ -8,21 +8,21 @@ Subject: [PATCH 1/2] lix: Make a Code Review (Gerrit) tab
  1 file changed, 11 insertions(+)
 
 diff --git a/templates/repo/header.tmpl b/templates/repo/header.tmpl
-index 21017415c1..c5a36b2203 100644
+index b6cbfc7283510a26f1fa039aca4a5f4ed4b92a47..bbce2bfbcb5aa83b7ae90b87e6dc22d10469adb7 100644
 --- a/templates/repo/header.tmpl
 +++ b/templates/repo/header.tmpl
-@@ -99,6 +99,11 @@
+@@ -107,6 +107,12 @@
  					</a>
  				{{end}}
- 
+
 +				{{if and (eq .Repository.Name "snix") (eq .Repository.OwnerName "snix")}}
 +					<a class="item" href="https://cl.snix.dev/q/project:snix">
 +						{{svg "octicon-code-review"}} Code Review (Gerrit)
 +					</a>
 +				{{end}}
++
  				{{if .Permission.CanRead $.UnitTypeExternalTracker}}
  					<a class="{{if .PageIsIssueList}}active {{end}}item" href="{{.RepoExternalIssuesLink}}" target="_blank" rel="noopener noreferrer">
  						{{svg "octicon-link-external"}} {{ctx.Locale.Tr "repo.issues"}}
--- 
-2.45.1
-
+--
+2.49.0

third_party/lix_forgejo/0002-lix-link-gerrit-cl-and-change-ids.patch

@@ -1,22 +1,20 @@
-From c560d6e110377fb6f42e841a0bd35f80c0f2eb29 Mon Sep 17 00:00:00 2001
+From 33e71419f21f76e8a242b88dcb6eff7af2bc1b4d Mon Sep 17 00:00:00 2001
 From: Jade Lovelace <software@lfcode.ca>
 Date: Thu, 16 May 2024 19:56:25 -0700
 Subject: [PATCH 2/2] lix: link gerrit cl/ and change-ids
 
 This code is a bit dubious but you know, golang
-
-Co-authored-by: Ryan Lahfa <raito@lix.systems>
 ---
  modules/markup/html.go | 59 ++++++++++++++++++++++++++++++++++++++++++
  1 file changed, 59 insertions(+)
 
 diff --git a/modules/markup/html.go b/modules/markup/html.go
-index 2e65827bf7..2d474077a5 100644
+index 7961c5c9301f03b89e88d289d032abca921adfff..518ad01b16466fe43f1fc44e9bcac63794d76bbe 100644
 --- a/modules/markup/html.go
 +++ b/modules/markup/html.go
-@@ -50,6 +50,20 @@ var (
+@@ -51,6 +51,20 @@ var (
  	// so that abbreviated hash links can be used as well. This matches git and GitHub usability.
- 	hashCurrentPattern = regexp.MustCompile(`(?:\s|^|\(|\[)([0-9a-f]{7,64})(?:\s|$|\)|\]|[.,:](\s|$))`)
+ 	hashCurrentPattern = regexp.MustCompile(`(?:^|\s)[^\w\d]{0,2}([0-9a-f]{7,64})[^\w\d]{0,2}(?:\s|$)`)
 
 +	// Gerrit change ID pattern
 +	changeIdPattern = GerritPattern{
@@ -35,7 +33,7 @@ index 2e65827bf7..2d474077a5 100644
  	// shortLinkPattern matches short but difficult to parse [[name|link|arg=test]] syntax
  	shortLinkPattern = regexp.MustCompile(`\[\[(.*?)\]\](\w*)`)
 
-@@ -77,6 +91,14 @@ var (
+@@ -82,6 +96,14 @@ var (
  	InlineCodeBlockRegex = regexp.MustCompile("`[^`]+`")
  )
 
@@ -50,7 +48,15 @@ index 2e65827bf7..2d474077a5 100644
  // CSS class for action keywords (e.g. "closes: #1")
  const keywordClass = "issue-keyword"
 
-@@ -152,6 +174,7 @@ var defaultProcessors = []processor{
+@@ -158,6 +180,7 @@ var defaultProcessors = []processor{
+ 	commitCrossReferencePatternProcessor,
+ 	hashCurrentPatternProcessor,
+ 	fediAddressProcessor,
++	gerritCLPatternProcessor,
+ 	emailAddressProcessor,
+ 	emojiProcessor,
+ 	emojiShortCodeProcessor,
+@@ -185,6 +208,7 @@ var commitMessageProcessors = []processor{
  	issueIndexPatternProcessor,
  	commitCrossReferencePatternProcessor,
  	hashCurrentPatternProcessor,
@@ -58,15 +64,7 @@ index 2e65827bf7..2d474077a5 100644
  	emailAddressProcessor,
  	emojiProcessor,
  	emojiShortCodeProcessor,
-@@ -179,6 +202,7 @@ var commitMessageProcessors = []processor{
- 	issueIndexPatternProcessor,
- 	commitCrossReferencePatternProcessor,
- 	hashCurrentPatternProcessor,
-+	gerritCLPatternProcessor,
- 	emailAddressProcessor,
- 	emojiProcessor,
- 	emojiShortCodeProcessor,
-@@ -788,6 +812,41 @@ func shortLinkProcessor(ctx *RenderContext, node *html.Node) {
+@@ -792,6 +816,41 @@ func shortLinkProcessor(ctx *RenderContext, node *html.Node) {
  	}
  }
 
@@ -109,5 +107,4 @@ index 2e65827bf7..2d474077a5 100644
  	if ctx.Metas == nil {
  		return
 --
-2.47.0
-
+2.49.0