CI: Update workflows

Author: deathaxe

.github/workflows/ci-lint.yml

@@ -31,9 +31,9 @@ jobs:
           - 'x64'
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v3
         with:
           python-version: ${{ matrix.python }}
           architecture: ${{ matrix.arch }}

.github/workflows/ci-syntax-tests.yml

@@ -23,7 +23,7 @@ on:
 jobs:
   syntax_tests:
     name: Sublime Text ${{ matrix.build }}
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
     timeout-minutes: 15 # default is 6 hours!
     strategy:
       matrix:
@@ -35,7 +35,7 @@ jobs:
           - build: latest
             default_packages: master
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: SublimeText/syntax-test-action@v2
         with:
           build: ${{ matrix.build }}

.github/workflows/ci-unit-tests.yml

@@ -21,14 +21,14 @@ on:
 jobs:
   test:
     name: Sublime Text ${{ matrix.st-version }}
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
     timeout-minutes: 15 # default is 6 hours!
     strategy:
       fail-fast: false
       matrix:
         st-version: [3, 4]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: SublimeText/UnitTesting/actions/setup@v1
         with:
           sublime-text-version: ${{ matrix.st-version }}

.github/workflows/deploy-gh-pages.yml

@@ -11,10 +11,10 @@ on:
 jobs:
   build:
     name: Deploy Docs to Github Pages
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - name: Set up Python