:alembic: port & modify .asf.yaml from log4j

apparently this is how I get issues enabled at github...
diff --git a/.asf.yaml b/.asf.yaml
new file mode 100644
index 0000000..aff1cfa
--- /dev/null
+++ b/.asf.yaml
@@ -0,0 +1,58 @@
+#
+# 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.
+#
+
+# `.asf.yaml` is a branch-specific YAML configuration file for Git repositories to control features such as notifications, GitHub settings, etc.
+# See its documentation for details: https://cwiki.apache.org/confluence/display/INFRA/Git+-+.asf.yaml+features
+
+notifications:
+  # GitHub already provides notifications for PRs and issues.
+  # Please don't duplicate that noise here!
+  commits: commits@logging.apache.org
+  pullrequests_bot_dependabot: robots@logging.apache.org
+github:
+  description: "Apache Log4net is a versatile, feature-rich, efficient logging API and backend for .NET"
+  homepage: https://logging.apache.org/log4net
+  features:
+    issues: true
+  del_branch_on_merge: true
+  autolink_jira:
+    - LOG4JNET
+  labels:
+    - apache
+    - dotnet
+    - .NET
+    - api
+    - library
+    - log4net
+    - logging
+    - logger
+    - api
+    - syslog
+  #protected_branches:
+  #  main: {}
+  #  2.x: {}
+  # Attempt to make the auto-generated github emails more easily readable in email clients.
+  custom_subjects:
+    new_pr: "[PR] {title} ({repository})"
+    close_pr: "Re: [PR] {title} ({repository})"
+    comment_pr: "Re: [PR] {title} ({repository})"
+    diffcomment: "Re: [PR] {title} ({repository})"
+    merge_pr: "Re: [PR] {title} ({repository})"
+    new_issue: "[I] {title} ({repository})"
+    comment_issue: "Re: [I] {title} ({repository})"
+    close_issue: "Re: [I] {title} ({repository})"
+    catchall: "[GH] {title} ({repository})"