chore: add env variables to ci.yml (#341)

Author: fern-support

.github/workflows/ci.yml

@@ -62,3 +62,6 @@ jobs:
           MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
           MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
           MAVEN_PUBLISH_REGISTRY_URL: "https://s01.oss.sonatype.org/content/repositories/releases/"
+          MAVEN_SIGNATURE_KID: ${{ secrets.MAVEN_SIGNATURE_KID }}
+          MAVEN_SIGNATURE_SECRET_KEY: ${{ secrets.MAVEN_SIGNATURE_SECRET_KEY }}
+          MAVEN_SIGNATURE_PASSWORD: ${{ secrets.MAVEN_SIGNATURE_PASSWORD }}