chore(3p/sources): Bump channels & overlays

* //third_party/overlays/tvl: remove SBCL override, as SBCL 2.2.11 fixes
  the bug we were running into.

* //fun/gemma: use historical nixpkgs for everything due to ABI
  incompatibilities triggered by preloaded libredirect.so wanting
  GLIBC_2.34 which is not available in elm-make.

Change-Id: I465f0366413856e45ddd1e67fc9d732075e2f3c5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7595
Tested-by: BuildkiteCI
Autosubmit: sterni <sternenseemann@systemli.org>
Reviewed-by: grfn <grfn@gws.fyi>

third_party/elmPackages_0_18/default.nix

@@ -4,6 +4,10 @@
 # Elm 0.19 changed the language & package ecosystem completely,
 # essentially requiring a partial rewrite of all Elm apps. However,
 # //fun/gemma uses Elm 0.18 and I don't have time to rewrite it.
+#
+# Since the ABIs of current glibc and the pinned version have diverged
+# too much, we need to build //fun/gemma completely based on a historical
+# nixpkgs version.
 
 { pkgs, ... }:
 
@@ -14,4 +18,4 @@
     rev = "14f9ee66e63077539252f8b4550049381a082518";
     sha256 = "1wn7nmb1cqfk2j91l3rwc6yhimfkzxprb8wknw5wi57yhq9m6lv1";
   })
-  { }).elmPackages
+{ })