Fix syntax test action

1. run action if action definition is updated
2. don't run if tag is created (assuming tags are created on master only anyway)
3. disable ST3 tests as v4+ requires ST4 due to `version 2` directive

Author: deathaxe

.github/workflows/syntax.yml

@@ -1,30 +1,42 @@
 name: Syntax Tests
 
 on:
+
   push:
+    branches:
+      - '**'
+    tags-ignore:
+      - '**'
     paths:
+      - '.github/workflows/syntax.yml'
       - '**.sublime-syntax'
       - '**/syntax_test*'
       - '**.tmPreferences'
   pull_request:
     paths:
+      - '.github/workflows/syntax.yml'
       - '**.sublime-syntax'
       - '**/syntax_test*'
       - '**.tmPreferences'
+    types:
+      - "opened"
+      - "reopened"
+      - "synchronize"
+  workflow_dispatch:
 
 jobs:
   main:
     name: Syntax Tests (${{ matrix.build }})
     strategy:
       matrix:
         include:
-          - build: 3211
-            packages: st3
-          - build: 4102
+          - build: 4107
+            packages: v4107
+          - build: latest
             packages: master
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: SublimeText/syntax-test-action@v2
         with:
           build: ${{ matrix.build }}