Add [ci skip] GitHub theme test CI

Author: michaelnordmeyer

.github/workflows/jekyll-theme.yml

@@ -12,6 +12,7 @@ on:
 
 jobs:
   gem_build:
+    if: "!contains(github.event.commits[0].message, '[ci skip]')"
     name: "Gem build (Ruby ${{ matrix.ruby }} on ${{ matrix.os }})"
     strategy:
       fail-fast: false
@@ -26,7 +27,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 1
-      - name: "Setup Ruby ${{ matrix.ruby }} on ${{ matrix.os }}"
+      - name: "Set up Ruby ${{ matrix.ruby }} on ${{ matrix.os }}"
         uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
@@ -41,6 +42,7 @@ jobs:
 
   gem_build_jruby:
     name: "Gem build (JRuby on ${{ matrix.os }})"
+    if: "!contains(github.event.commits[0].message, '[ci skip]')"
     strategy:
       fail-fast: false
       matrix:
@@ -66,6 +68,7 @@ jobs:
 
   gem_build_windows_11_arm:
     name: "Gem build (Ruby ${{ matrix.ruby }} on windows-11-arm)"
+    if: "!contains(github.event.commits[0].message, '[ci skip]')"
     strategy:
       fail-fast: false
       matrix:
@@ -78,7 +81,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 1
-      - name: "Setup Ruby ${{ matrix.ruby }} on windows-11-arm"
+      - name: "Set up Ruby ${{ matrix.ruby }} on windows-11-arm"
         uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}