chore(ci): ROLE forgejo-coding & forgejo-testing

When the CI vars.ROLE is forgejo-coding, it is assumed to be the
repository where collaborative coding happens,
i.e. https://codeberg.org/forgejo/forgejo

When the CI vars.ROLE is forgejo-testing, it is assumed that only codebase
testing is to be run and no other tests such as release build
integration, label constraints, backporting etc.

(cherry picked from commit f82840f1ea)

Conflicts:
	.forgejo/workflows/merge-requirements.yml
	.forgejo/workflows/release-notes-assistant-milestones.yml
	.forgejo/workflows/release-notes-assistant.yml
  did not exist back in v7.0

.forgejo/workflows/backport.yml

@@ -31,7 +31,7 @@ on:
 jobs:
   backporting:
     if: >
-      !startsWith(vars.ROLE, 'forgejo-') && (
+      ( vars.ROLE == 'forgejo-coding' ) && (
         github.event.pull_request.merged
         &&
         contains(toJSON(github.event.pull_request.labels), 'backport/v')

.forgejo/workflows/build-release-integration.yml

@@ -22,7 +22,7 @@ on:
 
 jobs:
   release-simulation:
-    if: ${{ !startsWith(vars.ROLE, 'forgejo-') }}
+    if: vars.ROLE == 'forgejo-coding'
     runs-on: self-hosted
     steps:
       - uses: actions/checkout@v3

.forgejo/workflows/cascade-setup-end-to-end.yml

@@ -24,7 +24,7 @@ on:
 
 jobs:
   info:
-    if: ${{ !startsWith(vars.ROLE, 'forgejo-') }}
+    if: vars.ROLE == 'forgejo-coding'
     runs-on: docker
     container:
       image: node:20-bookworm

.forgejo/workflows/renovate.yml

@@ -15,7 +15,7 @@ env:
 
 jobs:
   renovate:
-    if: ${{ secrets.RENOVATE_TOKEN != '' }}
+    if: vars.ROLE == 'forgejo-coding' && secrets.RENOVATE_TOKEN != ''
 
     runs-on: docker
     container:

.forgejo/workflows/testing.yml

@@ -9,7 +9,7 @@ on:
 
 jobs:
   backend-checks:
-    if: ${{ !startsWith(vars.ROLE, 'forgejo-') }}
+    if: vars.ROLE == 'forgejo-coding' || vars.ROLE == 'forgejo-testing'
     runs-on: docker
     container:
       image: 'docker.io/node:20-bookworm'