Fix invalid action versions across all workflows

- checkout@v6 → @v4 in all five workflows (v6 does not exist)
- setup-node@v6 → @v4 in copilot-setup-steps.yml
- action-gh-release@v3 → @v2 in build.yml and build-cached.yml (v3 does not exist)
- upload-sarif@v4 → @V3 in powershell.yml (v4 does not exist)
- Fix build-cached.yml Ahk2Exe validation: AutoHotkeySC.bin is the old
  archive layout; Ahk2Exe1.1.37 ships "Unicode 32-bit.bin" and
  "Unicode 64-bit.bin", matching what build.yml already checks for

https://claude.ai/code/session_012ja1eZFgtZdaxBVw1AusL6

Author: claude

.github/workflows/ahk-lint-format-compile.yml

@@ -16,7 +16,7 @@ jobs:
   lint:
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
       - name: Install AutoHotkey v1.1 (Portable)
         run: choco install autohotkey.portable --version=1.1.36.01 -y

.github/workflows/build-cached.yml

@@ -16,7 +16,7 @@ jobs:
   build-release:
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
       - name: Cache AutoHotkey and Ahk2Exe
         uses: actions/cache@v5
@@ -44,7 +44,8 @@ jobs:
           Expand-Archive "$env:TEMP\Ahk2Exe.zip" -DestinationPath "C:\AutoHotkey-Portable\Compiler" -Force
           $requiredFiles = @(
             "C:\AutoHotkey-Portable\Compiler\Ahk2Exe.exe",
-            "C:\AutoHotkey-Portable\Compiler\AutoHotkeySC.bin"
+            "C:\AutoHotkey-Portable\Compiler\Unicode 32-bit.bin",
+            "C:\AutoHotkey-Portable\Compiler\Unicode 64-bit.bin"
           )
           $missingFiles = $requiredFiles | Where-Object { -not (Test-Path $_) }
           if ($missingFiles) {
@@ -88,7 +89,7 @@ jobs:
         shell: pwsh
 
       - name: Create Release
-        uses: softprops/action-gh-release@v3
+        uses: softprops/action-gh-release@v2
         with:
           files: release/*.exe
           fail_on_unmatched_files: true

.github/workflows/build.yml

@@ -16,7 +16,7 @@ jobs:
   build-release:
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
       - name: Install Scoop
         shell: pwsh
@@ -89,7 +89,7 @@ jobs:
         shell: pwsh
 
       - name: Create Release
-        uses: softprops/action-gh-release@v3
+        uses: softprops/action-gh-release@v2
         with:
           files: release/*.exe
           fail_on_unmatched_files: true

.github/workflows/copilot-setup-steps.yml

@@ -16,9 +16,9 @@ jobs:
   copilot-setup-steps:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v4
         with:
           node-version: "24"
 

.github/workflows/powershell.yml

@@ -29,7 +29,7 @@ jobs:
     name: PSScriptAnalyzer
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
       - name: Run PSScriptAnalyzer
         uses: microsoft/psscriptanalyzer-action@7a0da25f33985767f15f93140306528900744195
@@ -44,6 +44,6 @@ jobs:
 
       # Upload the SARIF file generated in the previous step
       - name: Upload SARIF results file
-        uses: github/codeql-action/upload-sarif@v4
+        uses: github/codeql-action/upload-sarif@v3
         with:
           sarif_file: results.sarif