chore(builds): upgrade minimum macOS version from 11 to 12

Builds using macOS 11 just takes a stupidly long time as, as Homebrew
seems to have dropped support, meaning all homebrew dependencies are
installed from source, rather than get installed from bottles.

Hence let's try upgrading minimum macOS version from 11 (Big Sur), to
12 (Monteray).

.github/workflows/_build.yml

@@ -12,12 +12,12 @@ on:
         description: GitHub Actions runner OS
         type: string
         required: false
-        default: "macos-11"
+        default: "macos-12"
       build_os:
         description: Target OS to build for
         type: string
         required: false
-        default: "macos-11"
+        default: "macos-12"
       git_ref:
         description: Git ref to build
         type: string

.github/workflows/_prepare.yml

@@ -7,7 +7,7 @@ on:
         description: GitHub Actions runner OS
         type: string
         required: false
-        default: "macos-11"
+        default: "macos-12"
       builder_ref:
         description: Git ref to checkout of build-emacs-for-macos
         required: false

.github/workflows/_release.yml

@@ -8,7 +8,7 @@ on:
         description: GitHub Actions runner OS
         type: string
         required: false
-        default: "macos-11"
+        default: "macos-12"
       plan_artifact:
         description: Name of artifact containing a emacs-builder plan yaml file
         type: string
@@ -21,6 +21,11 @@ on:
         description: "Test build name"
         type: string
         required: false
+      update_casks:
+        description: "Update casks in homebrew tap?"
+        type: boolean
+        required: true
+        default: true
     secrets:
       TAP_REPO_TOKEN:
         description: Personal Access Token for Homebrew Tap repo
@@ -57,7 +62,10 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Trigger update casks workflow in homebrew tap
-        if: ${{ steps.dmg.outputs.result != 'fail' && inputs.test_build_name == '' }}
+        if: >-
+          steps.dmg.outputs.result != 'fail' &&
+          inputs.test_build_name == '' &&
+          inputs.update_casks
         run: >-
           gh workflow run --repo jimeh/homebrew-emacs-builds update-casks.yml
         env:

.github/workflows/build.yml

@@ -19,9 +19,9 @@ on:
         required: false
         default: ""
       os:
-        description: 'Runner OS ("macos-11", "macos-12", or "macos-latest")'
+        description: 'Runner OS ("macos-12", "macos-13", or "macos-latest")'
         required: true
-        default: "macos-11"
+        default: "macos-12"
       test_build_name:
         description: "Test build name"
         required: false
@@ -62,7 +62,7 @@ jobs:
     needs: [prepare]
     with:
       os: ${{ github.event.inputs.os }}
-      build_os: "macos-11"
+      build_os: "macos-12"
       artifact_prefix: "x86_64-"
       git_ref: ${{ github.event.inputs.git_ref }}
       git_sha: ${{ github.event.inputs.git_sha }}
@@ -89,6 +89,7 @@ jobs:
       plan_artifact: x86_64-build-plan
       dmg_artifact: x86_64-dmg
       test_build_name: ${{ github.event.inputs.test_build_name }}
+      update_casks: true
     secrets:
       TAP_REPO_TOKEN: ${{ secrets.TAP_REPO_TOKEN }}
 
@@ -130,5 +131,6 @@ jobs:
       plan_artifact: arm64-build-plan
       dmg_artifact: arm64-dmg
       test_build_name: ${{ github.event.inputs.test_build_name }}
+      update_casks: false
     secrets:
       TAP_REPO_TOKEN: ${{ secrets.TAP_REPO_TOKEN }}

.github/workflows/nightly-master.yml

@@ -31,7 +31,7 @@ jobs:
     uses: ./.github/workflows/_build.yml
     needs: [prepare]
     with:
-      build_os: "macos-11"
+      build_os: "macos-12"
       artifact_prefix: "x86_64-"
       git_ref: "master"
       git_sha: ${{ github.event.inputs.git_sha }}
@@ -53,6 +53,7 @@ jobs:
     with:
       plan_artifact: x86_64-build-plan
       dmg_artifact: x86_64-dmg
+      update_casks: true
     secrets:
       TAP_REPO_TOKEN: ${{ secrets.TAP_REPO_TOKEN }}
 
@@ -88,5 +89,6 @@ jobs:
     with:
       plan_artifact: arm64-build-plan
       dmg_artifact: arm64-dmg
+      update_casks: false
     secrets:
       TAP_REPO_TOKEN: ${{ secrets.TAP_REPO_TOKEN }}