Move to ubuntu-slim

Let's try to see if these workers are faster and/or cheaper and still
work.

Author: MikeMcQuaid

.github/workflows/actionlint.yml

@@ -26,7 +26,7 @@ permissions: {}
 jobs:
   workflow_syntax:
     if: github.repository_owner == 'Homebrew'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     permissions:
       contents: read
     container:
@@ -80,7 +80,7 @@ jobs:
       !contains(fromJSON('["cancelled", "skipped"]'), needs.workflow_syntax.result) &&
       !github.event.repository.private &&
       github.event_name != 'merge_group'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     permissions:
       contents: read
       security-events: write

.github/workflows/autogenerated-files.yml

@@ -22,7 +22,7 @@ defaults:
 
 jobs:
   autogenerated:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'Homebrew/brew'
     steps:
       - name: Set up Homebrew

.github/workflows/codeql-analysis.yml

@@ -14,7 +14,7 @@ defaults:
 jobs:
   analyze:
     name: Analyze
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     permissions:
       actions: read
       contents: read

.github/workflows/command-not-found-db-update.yml

@@ -76,7 +76,7 @@ jobs:
 
   delete-old-versions:
     needs: update-database
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.ref == 'refs/heads/main'
     permissions:
       packages: write

.github/workflows/copilot-setup-steps.yml

@@ -9,7 +9,7 @@ on:
 jobs:
   # The job MUST be called `copilot-setup-steps` or it will not be picked up by Copilot.
   copilot-setup-steps:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
 
     permissions:
       contents: read

.github/workflows/docker.yml

@@ -23,7 +23,7 @@ env:
 jobs:
   generate-tags:
     if: github.repository_owner == 'Homebrew'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     outputs:
       matrix: ${{ steps.attributes.outputs.matrix }}
       tags: ${{ steps.attributes.outputs.tags }}
@@ -135,7 +135,7 @@ jobs:
     needs: generate-tags
     if: github.repository_owner == 'Homebrew'
     name: docker (${{ matrix.arch }} Ubuntu ${{ matrix.version }})
-    runs-on: ${{ matrix.arch == 'arm64' && 'ubuntu-24.04-arm' || 'ubuntu-latest' }}
+    runs-on: ${{ matrix.arch == 'arm64' && 'ubuntu-24.04-arm' || 'ubuntu-slim' }}
     strategy:
       fail-fast: false
       matrix:
@@ -226,7 +226,7 @@ jobs:
   merge:
     needs: [generate-tags, build]
     if: github.repository_owner == 'Homebrew' && fromJSON(needs.generate-tags.outputs.merge)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     strategy:
       fail-fast: false
       matrix:

.github/workflows/docs.yml

@@ -23,7 +23,7 @@ defaults:
 
 jobs:
   docs:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: Set up Homebrew
         id: set-up-homebrew
@@ -103,7 +103,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     outputs:
       deploy_url: ${{ steps.deployment.outputs.page_url }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     timeout-minutes: 10
     steps:
       - name: Deploy to GitHub Pages
@@ -116,7 +116,7 @@ jobs:
     if: ${{ github.repository == 'Homebrew/brew' && always() && github.ref_name == 'main' }}
     env:
       RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     timeout-minutes: 5
     permissions:
       issues: write # for Homebrew/actions/create-or-update-issue

.github/workflows/doctor.yml

@@ -22,7 +22,7 @@ defaults:
 
 jobs:
   determine-runners:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     outputs:
       runners: ${{ steps.determine-runners.outputs.runners }}
     steps:

.github/workflows/sbom.yml

@@ -20,7 +20,7 @@ defaults:
 jobs:
   sbom:
     if: github.repository == 'Homebrew/brew'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: Set up Homebrew
         id: set-up-homebrew
@@ -97,7 +97,7 @@ jobs:
   issue:
     needs: sbom
     if: always() && github.event_name == 'schedule'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     env:
       RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
     permissions:

.github/workflows/sorbet.yml

@@ -117,7 +117,7 @@ jobs:
   issue:
     needs: tapioca
     if: always() && github.event_name == 'schedule'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     env:
       RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
     permissions: