[SPARK-49379] Enable Pull Request Labeler

### What changes were proposed in this pull request?

This PR aims to enable `Pull Request Labeler`.
- https://github.com/actions/labeler

### Why are the changes needed?

To help PR reviews by categorizing by labels.

### Does this PR introduce _any_ user-facing change?

No.

### How was this patch tested?

This should be tested after merging.

### Was this patch authored or co-authored using generative AI tooling?

No.

Closes #100 from dongjoon-hyun/SPARK-49379.

Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>

.github/labeler.yml

@@ -0,0 +1,67 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+INFRA:
+  - changed-files:
+    - any-glob-to-any-file: [
+     '.asf.yaml',
+     '.gitignore',
+     '.github/**/*',
+     'dev/merge_spark_pr.py',
+     'dev/check-license'
+    ]
+
+BUILD:
+  - changed-files:
+    - any-glob-to-any-file: [
+     '**/*.gradle',
+     'gradle/**/*',
+     'config/**/*',
+     'build-tools/**/*'
+    ]
+
+DOCS:
+  - changed-files:
+    - any-glob-to-any-file: [
+     '**/README.md'
+    ]
+
+EXAMPLES:
+  - changed-files:
+    - any-glob-to-any-file: [
+     'examples/**/*'
+    ]
+
+API:
+  - changed-files:
+    - any-glob-to-any-file: [
+     'spark-operator-api/**/*'
+    ]
+
+SUBMISSION WORKER:
+  - changed-files:
+    - any-glob-to-any-file: [
+     'spark-submission-worker/**/*'
+    ]
+
+OPERATOR:
+  - changed-files:
+    - any-glob-to-any-file: [
+     'spark-operator/**/*'
+    ]