Update build.yml to include gitversion in GITHUB_OUTPUT

.github/workflows/build.yml

@@ -72,7 +72,7 @@ jobs:
           conda config --set anaconda_upload no --set solver libmamba
           echo yes | anaconda login --username ${{ secrets.ANACONDA_CLOUD_USERNAME }} --password ${{ secrets.ANACONDA_CLOUD_PASSWORD }}
           VERSION_FROM_GIT_TAG=$(git tag --list "v*[0-9]" --sort=version:refname | tail -1 | cut -c 2-) conda build . -c mosek -c anaconda -c pvlib -c slacgismo -c conda-forge --numpy 1.22.0
-          echo '::set-output name=gitversion::$(git tag --list "v*[0-9]" --sort=version:refname | tail -1 | cut -c 2-)'
+          echo "gitversion=$(git tag --list "v*[0-9]" --sort=version:refname | tail -1 | cut -c 2-)" >> $GITHUB_OUTPUT
 
       - name: Upload the Anaconda Package
         id: condaload