ci: use eu-central-1 bucket (#4315)

Probably increase CI success rate.

---------

Signed-off-by: Alex Chi <iskyzh@gmail.com>

.github/actions/run-python-test-set/action.yml

@@ -36,14 +36,6 @@ inputs:
     description: 'Region name for real s3 tests'
     required: false
     default: ''
-  real_s3_access_key_id:
-    description: 'Access key id'
-    required: false
-    default: ''
-  real_s3_secret_access_key:
-    description: 'Secret access key'
-    required: false
-    default: ''
   rerun_flaky:
     description: 'Whether to rerun flaky tests'
     required: false
@@ -104,8 +96,6 @@ runs:
         COMPATIBILITY_POSTGRES_DISTRIB_DIR: /tmp/neon-previous/pg_install
         TEST_OUTPUT: /tmp/test_output
         BUILD_TYPE: ${{ inputs.build_type }}
-        AWS_ACCESS_KEY_ID: ${{ inputs.real_s3_access_key_id }}
-        AWS_SECRET_ACCESS_KEY: ${{ inputs.real_s3_secret_access_key }}
         COMPATIBILITY_SNAPSHOT_DIR: /tmp/compatibility_snapshot_pg${{ inputs.pg_version }}
         ALLOW_BACKWARD_COMPATIBILITY_BREAKAGE: contains(github.event.pull_request.labels.*.name, 'backward compatibility breakage')
         ALLOW_FORWARD_COMPATIBILITY_BREAKAGE: contains(github.event.pull_request.labels.*.name, 'forward compatibility breakage')

.github/workflows/build_and_test.yml

@@ -346,10 +346,8 @@ jobs:
           test_selection: regress
           needs_postgres_source: true
           run_with_real_s3: true
-          real_s3_bucket: ci-tests-s3
-          real_s3_region: us-west-2
-          real_s3_access_key_id: "${{ secrets.AWS_ACCESS_KEY_ID_CI_TESTS_S3 }}"
-          real_s3_secret_access_key: "${{ secrets.AWS_SECRET_ACCESS_KEY_CI_TESTS_S3 }}"
+          real_s3_bucket: neon-github-ci-tests
+          real_s3_region: eu-central-1
           rerun_flaky: true
           pg_version: ${{ matrix.pg_version }}
         env: