Update maven-release-x64.yml

Make a new .m2 directory only if it doesn't exist.

Author: Enfernuz

.github/workflows/maven-release-x64.yml

@@ -20,6 +20,6 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          mkdir ~/.m2
+          mkdir -p ~/.m2
           echo "<settings><servers><server><id>github</id><username>Enfernuz</username><password>${GITHUB_TOKEN}</password></server></servers></settings>" > ~/.m2/settings.xml
           mvn -B deploy