Update deprecated set-output to environment files

.github/workflows/Build.yml

@@ -26,7 +26,6 @@ jobs:
             echo "projectname=$projectname" >> $GITHUB_OUTPUT
             version=`echo $(jq -r '.version' <<< "$manifestjson")`
             echo "version=$version" >> $GITHUB_OUTPUT
-            echo "### $projectname-v$version :rocket:" >> $GITHUB_STEP_SUMMARY
       - name: Rename changelog
         run: mv CHANGELOG.md CHANGELOG-${{ steps.info.outputs.version }}.md
       - name: Upload changelog

.github/workflows/Release.yml

@@ -23,9 +23,9 @@ jobs:
         run: |
             manifestjson=`cat pax/modpack/manifest.json`
             projectname=`echo $(jq -r '.name' <<< "$manifestjson")`
-            echo "::set-output name=projectname::$projectname"
+            echo "projectname=$projectname" >> $GITHUB_OUTPUT
             version=`echo $(jq -r '.minecraft.version' <<< "$manifestjson")`
-            echo "::set-output name=version::$version"
+            echo "version=$version" >> $GITHUB_OUTPUT
       - name: Get tag
         id: version
         uses: "WyriHaximus/github-action-get-previous-tag@v1"
@@ -143,7 +143,7 @@ jobs:
             *beta*) rel_type="beta" ;;
             *) rel_type="release" ;;
           esac
-          echo "::set-output name=type::$rel_type"
+          echo "type=$rel_type" >> $GITHUB_OUTPUT
       - name: Create release
         uses: juraj-hrivnak/[email protected]
         with: