Add source plugin back to POM

Author: jordanpadams

pom.xml

@@ -92,6 +92,20 @@ POSSIBILITY OF SUCH DAMAGE.
           <skipDeploy>false</skipDeploy>  <!-- This is `true` in parent pom -->
         </configuration>
       </plugin>
+      <!-- Generate source JARs (required for Maven Central deployment) -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-source-plugin</artifactId>
+        <version>3.3.1</version>
+        <executions>
+          <execution>
+            <id>attach-sources</id>
+            <goals>
+              <goal>jar-no-fork</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
     </plugins>
   </build>