CI: Use ubuntu-22.04 rather than ubuntu-latest (ubuntu-20.04)

Use ubuntu-22.04 for the CI tests rather than ubuntu-latest,
which is currently ubuntu-20.04.

.github/workflows/codeql-analysis.yml

@@ -11,7 +11,7 @@ on:
 jobs:
  analyze:
    name: Analyze
-   runs-on: ubuntu-latest
+   runs-on: ubuntu-22.04
    permissions:
      actions: read
      contents: read

.github/workflows/docker.yml

@@ -14,7 +14,7 @@ permissions:
 jobs:
   ubuntu:
     if: startsWith(github.repository, 'Homebrew/')
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:

.github/workflows/maintainers-man-completions.yml

@@ -21,7 +21,7 @@ permissions:
 
 jobs:
   updates:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     if: github.repository == 'Homebrew/brew'
     steps:
       - name: Setup Homebrew

.github/workflows/spdx.yml

@@ -15,7 +15,7 @@ permissions:
 jobs:
   spdx:
     if: github.repository == 'Homebrew/brew'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Set up Homebrew
         id: set-up-homebrew

.github/workflows/tests.yml

@@ -20,7 +20,7 @@ concurrency:
 jobs:
   syntax:
     if: github.repository == 'Homebrew/brew'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Set up Homebrew
         id: set-up-homebrew
@@ -52,7 +52,7 @@ jobs:
     name: tap syntax (Linux)
     needs: syntax
     if: startsWith(github.repository, 'Homebrew/')
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Set up Homebrew
         id: set-up-homebrew
@@ -146,7 +146,7 @@ jobs:
 
   vendored-gems:
     name: vendored gems (Linux)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Set up Homebrew
         id: set-up-homebrew
@@ -167,7 +167,7 @@ jobs:
 
   docker:
     needs: syntax
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Set up Homebrew
         id: set-up-homebrew
@@ -191,7 +191,7 @@ jobs:
   tests:
     name: ${{ matrix.name }}
     needs: syntax
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
         include:
@@ -244,7 +244,7 @@ jobs:
 
   test-default-formula-linux:
     name: test default formula (Linux)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     env:
       HOMEBREW_BOOTSNAP: 1
     steps:

.github/workflows/triage-issues.yml

@@ -29,7 +29,7 @@ jobs:
           contains(github.event.pull_request.labels.*.name, 'stale')
         )
       )
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Mark/Close Stale Issues and Pull Requests
         uses: actions/stale@v5
@@ -55,7 +55,7 @@ jobs:
           contains(github.event.pull_request.labels.*.name, 'stale')
         )
       )
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Mark/Close Stale `bump-formula-pr` and `bump-cask-pr` Pull Requests
         uses: actions/stale@v5
@@ -72,7 +72,7 @@ jobs:
 
   lock-threads:
     if: startsWith(github.repository, 'Homebrew/') && github.event_name != 'issue_comment'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Lock Outdated Threads
         uses: dessant/lock-threads@e460dfeb36e731f3aeb214be6b0c9a9d9a67eda6

.github/workflows/triage.yml

@@ -18,7 +18,7 @@ concurrency: triage-${{ github.head_ref }}
 
 jobs:
   review:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     if: startsWith(github.repository, 'Homebrew/')
     steps:
       - name: Re-run this workflow