Migrate Flogger from WORKSPACE to Bzlmod and bump bazel version to 7.…

…3.1.

Fixes #387.

RELNOTES=n/a
PiperOrigin-RevId: 681581084

.bazelversion

@@ -1 +1 @@
-7.0.2
+7.3.1

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
         uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8
         with:
           path: ~/.cache/bazel/*/*/external
-          key: bazel-${{ hashFiles('WORKSPACE') }}
+          key: bazel-${{ hashFiles('MODULE.bazel') }}
           restore-keys: |
             bazel-
       - name: 'Set up JDK ${{ matrix.java }}'

MODULE.bazel

@@ -0,0 +1,21 @@
+# Copyright (C) 2024 The Flogger Authors.
+#
+# Licensed 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.
+
+bazel_dep(name = "rules_java", version = "7.12.1")
+bazel_dep(name = "google_bazel_common")
+git_override(
+    module_name = "google_bazel_common",
+    commit = "e2204d625d97dda88112af0b0a9e56ed7712d15c",
+    remote = "https://github.com/google/bazel-common",
+)