Update PGOLDVERSIONS for internal pipeline build

Author: idanovinda

delivery.yaml

@@ -4,6 +4,7 @@ allow_concurrent_steps: true
 build_env: &BUILD_ENV
   BASE_IMAGE: container-registry.zalando.net/library/ubuntu-22.04
   PGVERSION: 18
+  PGOLDVERSIONS: "15 16 17"
   MULTI_ARCH_REGISTRY: container-registry-test.zalando.net/acid
 
 pipeline:
@@ -32,7 +33,7 @@ pipeline:
       docker buildx build --platform "linux/amd64,linux/arm64" \
                           --build-arg PGVERSION="$PGVERSION" \
                           --build-arg BASE_IMAGE="$BASE_IMAGE" \
-                          --build-arg PGOLDVERSIONS="14 15 16" \
+                          --build-arg PGOLDVERSIONS="$PGOLDVERSIONS" \
                           -t "$ECR_TEST_IMAGE" \
                           --push .
 
@@ -61,7 +62,7 @@ pipeline:
       docker buildx build --platform "linux/amd64,linux/arm64" \
                           --build-arg PGVERSION="$PGVERSION" \
                           --build-arg BASE_IMAGE="$BASE_IMAGE" \
-                          --build-arg PGOLDVERSIONS="14 15 16" \
+                          --build-arg PGOLDVERSIONS="$PGOLDVERSIONS" \
                           -t "$ECR_TEST_IMAGE" \
                           --push .
       cdp-promote-image "$ECR_TEST_IMAGE"
@@ -92,7 +93,7 @@ pipeline:
       docker buildx build --platform "linux/amd64,linux/arm64" \
                           --build-arg PGVERSION="$PGVERSION" \
                           --build-arg BASE_IMAGE="$BASE_IMAGE" \
-                          --build-arg PGOLDVERSIONS="14 15 16" \
+                          --build-arg PGOLDVERSIONS="$PGOLDVERSIONS" \
                           -t "$ECR_TEST_IMAGE" \
                           --push .
       cdp-promote-image "$ECR_TEST_IMAGE"