🔧 (main.yaml): specify shell for PowerShell script and add environmen…

…t variables

Specify the shell as 'pwsh' for running the PowerShell script to ensure compatibility and correct execution. Add environment variables SPOTIFY_CLIENT_SECRET and YOUTUBE_API_KEY to securely pass sensitive information required by the script, enhancing security and functionality.

.github/workflows/main.yaml

@@ -175,6 +175,10 @@ jobs:
       - name: getEpisodeList.ps1
         run: |
           ./.powershell/getEpisodeList.ps1
+        shell: pwsh
+        env:
+          SPOTIFY_CLIENT_SECRET: ${{ secrets.SPOTIFY_CLIENT_SECRET }}
+          YOUTUBE_API_KEY: ${{ secrets.YOUTUBE_API_KEY }}
       - uses: cschleiden/replace-tokens@v1
         with:
           files: '["**/*.html", "**/*.yaml"]'