Update snapshot.yml

Author: MrXiaoM

.github/workflows/snapshot.yml

@@ -26,13 +26,13 @@ jobs:
         with:
           distribution: temurin
           java-version: 11
-      - name: Get short SHA
-        run: echo "SHORT_SHA=${GITHUB_SHA::7}" >> $GITHUB_ENV
         # 检查是否存在 secrets，避免未设置 secrets 时运行发布
       - name: Check Secrets
-        run: echo "SECRETS_LENGTH=$(expr length "$SECRETS_TO_CHECK")" >> $GITHUB_ENV
+        run: |
+          echo "SHORT_SHA=${GITHUB_SHA::7}" >> $GITHUB_ENV
+          echo "SECRETS_LENGTH=$(expr length "$SECRETS_TO_CHECK")" >> $GITHUB_ENV
         env:
-            SECRETS_TO_CHECK: ${{ secrets.SIGNING_PRIVATE_KEY }}
+          SECRETS_TO_CHECK: ${{ secrets.SIGNING_PRIVATE_KEY }}
       - name: Publish Package
         if: ${{ env.SECRETS_LENGTH > 0 }}
         run: ./gradlew publishMavenPublicationToSonatypeRepository closeAndReleaseSonatypeStagingRepository