Update GitHub Deploy config

Author: grmeyer-hw-dev

.github/workflows/deploy.yml

@@ -26,7 +26,7 @@ jobs:
           gpg-passphrase: ${{ secrets.GPG_PASSPHRASE }}
 
       - name: Deploy with Maven
-        run: mvn deploy -X
+        run: mvn deploy -X -Psign-artifacts -Dgpg.passphrase=${{ secrets.GPG_PASSPHRASE }}
         env:
           MAVEN_USERNAME: ${{ secrets.CENTRAL_USERNAME }}
           MAVEN_PASSWORD: ${{ secrets.CENTRAL_PASSWORD }}

pom.xml

@@ -42,6 +42,27 @@
     </developers>
 
     <profiles>
+        <profile>
+            <id>sign-artifacts</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-gpg-plugin</artifactId>
+                        <version>3.0.1</version>
+                        <executions>
+                            <execution>
+                                <id>sign-artifacts</id>
+                                <phase>verify</phase>
+                                <goals>
+                                    <goal>sign</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
         <profile>
             <id>ossrh</id>
             <activation>