feat(ops/secrets): Add tf-keycloak secrets file

This file can be sourced (somehow, depending on the user) while
working with //ops/keycloak to get the relevant secrets.

Change-Id: Ibb3051c4b019f64824964475451c1c3996db6421
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4708
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>

ops/secrets/secrets.nix

@@ -30,4 +30,5 @@ in {
   "nix-cache-pub.age" = default;
   "owothia.age" = default;
   "panettone.age" = default;
+  "tf-keycloak.age" = default;
 }

ops/secrets/tf-keycloak.age

@@ -0,0 +1,13 @@
+age-encryption.org/v1
+-> ssh-ed25519 dcsaLw CRX6a8zfz3BaDYhwrBPXBgEn/o0WuS6UdvA55wYNTBc
+/5gTObQ8770g8kIxCQyQj8hOh+1dkOu5DW1sz33eiy8
+-> ssh-ed25519 CpJBgQ 1/oDGaLOKblznS/ciKQ0g7Jdfg1KtEKWugjE9o9n1jo
+A5wcsx6NXQpjKR8Y9jlM4JN34IUi3T4UuTIOtmOHwcs
+-> ssh-ed25519 aXKGcg pYkMVxIGv408998UFzNQZvCQqBNPOSx+fvMs9FGd2nc
+Ue1rNrARXo0/Fq0qazNo+5a4zc7JBLdEgrqUowOEOBg
+-> ssh-ed25519 OkGqLg iLVc9k937aMAyl82TFsmDeX46PSrjQ6QpEzU0BcrNHg
+NzZYEXjz4mwafayIIvGxcE0cLhhUZuzh5loyfIZzl+0
+-> `^*"*qb-grease r`; Fwf.0CJ+
+5qQRDetp1IFec1AkHd17faslyU+7OHDiTmwoSJGZZPWrdiY
+--- uguIPraC7NNVfyDIWoTVjiunofaRYY8xeLipwZuU0iQ
+fÑÜÒÚEÿ''èɆ<C389>…˜%:·
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ªÝz†g¤=v{éÌcX¾Æþo‡!-L÷i5	óL2	@A¾ÍAì