fix(workflows): correct checkout action syntax and update validation script

Author: santiagosayshey

.github/workflows/testRegex.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     container: mcr.microsoft.com/powershell:lts
     steps:
-      - uses: actions:checkout@v4
+      - uses: actions/checkout@v4
 
       - name: Test Patterns
         run: pwsh scripts/testPatterns.ps1

.github/workflows/validateRegex.yml

@@ -25,4 +25,4 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Validate Patterns
-        run: pwsh scripts/validateAllPatterns.ps1
+        run: pwsh scripts/validatePatterns.ps1