chore: add java sdk signing information (#248)

Author: dsinghvi

.github/workflows/java-sdk.yml

@@ -26,5 +26,8 @@ jobs:
           FERN_TOKEN: ${{ secrets.FERN_TOKEN }}
           MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
           MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
+          MAVEN_SIGNING_KEY_ID: ${{ secrets.MAVEN_SIGNING_KEY_ID }}
+          MAVEN_SIGNING_PASSWORD: ${{ secrets.MAVEN_SIGNING_PASSWORD }}
+          MAVEN_SIGNING_KEY: ${{ secrets.MAVEN_SIGNING_KEY }}
         run: |
           fern generate --group java-sdk --version ${{ inputs.version }} --log-level debug

fern/generators.yml

@@ -45,9 +45,12 @@ groups:
           coordinate: io.intercom:intercom-java
           username: ${MAVEN_USERNAME}
           password: ${MAVEN_PASSWORD}
+          signature:
+            keyId: ${MAVEN_SIGNING_KEY_ID}
+            password: ${MAVEN_SIGNING_PASSWORD}
+            secretKey: ${MAVEN_SIGNING_KEY}
         github:
           repository: intercom/intercom-java
-          mode: pull-request
         config:
           enable-inline-types: true
           client-class-name: Intercom