Simplify npx command invocations

Author: deimonn

.github/workflows/build.yaml

@@ -21,4 +21,4 @@ jobs:
       run: npm ci
 
     - name: Package the extension
-      run: npx -p @vscode/vsce -c 'vsce package'
+      run: npx vsce package

.github/workflows/publish.yaml

@@ -21,15 +21,15 @@ jobs:
       run: npm ci
 
     - name: Package extension
-      run: npx -p @vscode/vsce --yes -c 'vsce package'
+      run: npx vsce package
 
     - name: Publish on Visual Studio Marketplace
-      run: npx -p @vscode/vsce --yes -c 'vsce publish -i *.vsix'
+      run: npx vsce publish -i *.vsix
       env:
         VSCE_PAT: ${{ secrets.VSCE_PAT }}
 
     - name: Publish on Eclipse Open VSX
-      run: npx -p ovsx --yes -c 'ovsx publish *.vsix'
+      run: npx ovsx publish *.vsix
       env:
         OVSX_PAT: ${{ secrets.OVSX_PAT }}