Use ubuntu-slim on simple GitHub actions

.github/workflows/codescan.yml

@@ -25,7 +25,7 @@ on:
 jobs:
   analyze:
     name: Analyze Code
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     # Limit permissions of this GitHub action. Can only write to security-events
     permissions:
       actions: read

.github/workflows/issue_opened.yml

@@ -8,7 +8,7 @@ on:
 permissions: {}
 jobs:
   automation:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
     # Add the new issue to a project board, if it needs triage
     # See https://github.com/actions/add-to-project

.github/workflows/label_merge_conflicts.yml

@@ -18,7 +18,7 @@ jobs:
   triage:
     # Ensure this job never runs on forked repos. It's only executed for 'dspace/dspace-angular'
     if: github.repository == 'dspace/dspace-angular'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     permissions:
       pull-requests: write
     steps:
@@ -36,4 +36,4 @@ jobs:
           conflict_comment: |
             Hi @${author},
             Conflicts have been detected against the base branch.
-            Please [resolve these conflicts](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/addressing-merge-conflicts/about-merge-conflicts) as soon as you can. Thanks!
+            Please [resolve these conflicts](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/addressing-merge-conflicts/about-merge-conflicts) as soon as you can. Thanks!

.github/workflows/port_merged_pull_request.yml

@@ -18,7 +18,7 @@ permissions:
 
 jobs:
   port_pr:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     # Don't run on closed *unmerged* pull requests
     if: github.event.pull_request.merged
     steps:
@@ -43,4 +43,4 @@ jobs:
           merge_commits: 'skip'
           # Use a personal access token (PAT) to create PR as 'dspace-bot' user.
           # A PAT is required in order for the new PR to trigger its own actions (for CI checks)
-          github_token: ${{ secrets.PR_PORT_TOKEN }}
+          github_token: ${{ secrets.PR_PORT_TOKEN }}

.github/workflows/pull_request_opened.yml

@@ -16,7 +16,7 @@ permissions:
 
 jobs:
   automation:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
     # Assign the PR to whomever created it. This is useful for visualizing assignments on project boards
     # See https://github.com/toshimaru/auto-author-assign

.github/workflows/stale.yml

@@ -14,7 +14,7 @@ permissions:
 
 jobs:
   stale:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - uses: actions/stale@v10
         with:
@@ -69,4 +69,4 @@ jobs:
           close-pr-message: |
             This pull request has been closed automatically. If these changes are still relevant
             then please re-open this pull request with a comment and rebase your PR based on the latest
-            DSpace code. This will notify us to assign a reviewer to your PR.
+            DSpace code. This will notify us to assign a reviewer to your PR.