ci: use slim Ubuntu runners (#753)

Author: okineadev

.github/workflows/provenance.yml

@@ -14,7 +14,7 @@ permissions:
   contents: read
 jobs:
   check-provenance:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:

.github/workflows/semantic-pull-requests.yml

@@ -16,7 +16,7 @@ jobs:
       pull-requests: read # for amannn/action-semantic-pull-request to analyze PRs
       statuses: write # for amannn/action-semantic-pull-request to mark status of analyzed PR
     if: github.repository == 'npmx-dev/npmx.dev'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     name: semantic-pr
     steps:
       - name: Validate PR title