Add env inputs

.github/workflows/validate.yml

diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index f63a107..9f850f8 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -37,5 +37,8 @@
       - name: Checkout the code
         uses: actions/checkout@v2
       - name: "Deploy Snapshot"
+        env:
+          SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+          SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
         run: ./deploy_snapshot.sh