Use a9 branch for portable build

config-portable.yaml

@@ -0,0 +1,14 @@
+parameters:
+  custom_target_branch: "a9-portable"
+  pre_clean: true
+
+actions:
+  - run_script:
+      - script: "replace_spec.sh"
+        cwd: "rpms"
+
+  - changelog_entry:
+      - name: "eabdullin"
+        email: "eabdullin@almalinux.org"
+        line:
+          - "Portable build"

scripts/replace_spec.sh

@@ -0,0 +1,2 @@
+rm SPECS/java-25-openjdk.spec
+ln -s ../SOURCES/java-25-openjdk-portable.specfile SPECS/java-25-openjdk.spec