Use GHA ubuntu-slim where reasonable (DefinitelyTyped#74899)

Author: jakebailey

.github/workflows/CI.yml

@@ -23,7 +23,7 @@ concurrency:
 
 jobs:
   setup-matrix:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped'
 
     outputs:
@@ -125,7 +125,7 @@ jobs:
         if: ${{ github.event_name == 'pull_request' }}
 
   dangerbot:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped' && github.event_name == 'pull_request'
 
     needs:
@@ -158,7 +158,7 @@ jobs:
           DANGER_GITHUB_API_TOKEN=$TOKEN pnpm danger ci || $( exit 0 )
 
   scripts:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped'
 
     steps:

.github/workflows/format-and-commit.yml

@@ -11,7 +11,7 @@ on:
 
 jobs:
   dprint-fmt:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped'
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

.github/workflows/ghostbuster.yml

@@ -19,7 +19,7 @@ jobs:
     permissions:
       contents: write # for Git to git push
       pull-requests: write # for peter-evans/create-pull-request to create a PR
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped'
 
     steps:

.github/workflows/lint-md.yml

@@ -8,7 +8,7 @@ permissions:
 
 jobs:
   lint-md:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped'
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

.github/workflows/support-window.yml

@@ -21,7 +21,7 @@ jobs:
     permissions:
       contents: write # for Git to git push
     if: github.repository == 'DefinitelyTyped/DefinitelyTyped'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: ./.github/actions/setup-for-scripts