chore: remove redundant compileJava genCustomPkg dependency and clarify CI comment

The compileJava task dependency on genCustomPkg is already covered by
sourcesJar; removing the duplicate from asset-import and RAB builds.
Also tightens the comment in custom-package-container.yml to accurately
describe the branch-tag logic (manual run, not all non-main branches).

Signed-off-by: Chris (He/Him) <cgrote@gmail.com>

Author: cmgrote

.github/workflows/custom-package-container.yml

@@ -49,7 +49,7 @@ jobs:
         id: tags
         run: |
           if [ -n "${{ inputs.branch }}" ]; then
-            # For non-main branches, use version and branch name (sanitized)
+            # For manual runs with branch specified, use version and branch name (sanitized)
             BRANCH_NAME=$(echo "${{ inputs.branch }}" | sed 's/[^a-zA-Z0-9._-]/-/g')
             echo "tags=ghcr.io/atlanhq/csa-${{inputs.package_name}}:${{inputs.version}}-${BRANCH_NAME}" >> $GITHUB_OUTPUT
             echo "build_version=${{inputs.version}}-${BRANCH_NAME}" >> $GITHUB_OUTPUT

samples/packages/asset-import/build.gradle.kts

@@ -20,9 +20,6 @@ tasks {
     getByName("sourcesJar") {
         dependsOn("genCustomPkg")
     }
-    compileJava {
-        dependsOn("genCustomPkg")
-    }
 }
 
 publishing {

samples/packages/relational-assets-builder/build.gradle.kts

@@ -20,9 +20,6 @@ java {
 }
 
 tasks {
-    compileJava {
-        dependsOn("genCustomPkg")
-    }
     shadowJar {
         isZip64 = true
         archiveClassifier.set("")