[FLINK-30963][ci] Streamline binary URL configuration

Author: zentol

.github/workflows/push_pr.yml

@@ -26,5 +26,3 @@ jobs:
     uses: apache/flink-connector-shared-utils/.github/workflows/ci.yml@ci_utils
     with:
       flink_version: 1.16.0
-      flink_url: https://archive.apache.org/dist/flink/flink-1.16.0/flink-1.16.0-bin-scala_2.12.tgz
-      cache_flink_binary: true

.github/workflows/weekly.yml

@@ -29,5 +29,3 @@ jobs:
     uses: apache/flink-connector-shared-utils/.github/workflows/ci.yml@ci_utils
     with:
       flink_version: ${{ matrix.flink }}
-      flink_url: https://s3.amazonaws.com/flink-nightly/flink-${{ matrix.flink }}-bin-scala_2.12.tgz
-      cache_flink_binary: false