Skip yarn build steps on Jitpack

Jitpack doesn't have gclib required for Node 20 which means all builds fail there when yarn build is attempted.

This makes yarn tasks conditional dependency with -PisJitpack flag which skips the problematic section

Affects issues:
- Possibly fixed #3411

Plan/common/build.gradle

@@ -233,8 +233,12 @@ artifacts {
 }
 
 processResources {
-    dependsOn copyYarnBuildResults
-    dependsOn determineAssetModifications
+    // Skips Yarn build on Jitpack since Jitpack doesn't offer gclib version compatible with Node 20
+    // Jitpack build is used mainly for java dependencies.
+    if (!project.hasProperty("isJitpack")) {
+        dependsOn copyYarnBuildResults
+        dependsOn determineAssetModifications
+    }
     dependsOn generateResourceForMySQLDriver
     dependsOn generateResourceForSQLiteDriver
     dependsOn generateResourceForIpAddressMatcher

jitpack.yml

@@ -6,4 +6,4 @@ before_install:
    - apt-get install -y nodejs
 install:
   - cd Plan
-  - ./gradlew shadowJar publishToMavenLocal
+  - ./gradlew -PisJitpack shadowJar publishToMavenLocal