Update CI to run tests againt v2-0-test branch (#10891)

(cherry picked from commit db166ba)

codecov.yml

@@ -0,0 +1,72 @@
+# 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.
+---
+codecov:
+  require_ci_to_pass: true
+  notify:
+    wait_for_ci: false
+
+coverage:
+  precision: 2
+  round: down
+  range: "85...100"
+  status:
+    project:
+      default:
+        # basic
+        target: auto
+        threshold: 0%
+        base: auto
+        paths:
+          - "airflow"
+        # advanced
+        branches:
+          - master
+          - v1-10-stable
+          - v1-10-test
+          - v2-0-test
+        if_not_found: success
+        if_ci_failed: error
+        informational: true
+        only_pulls: false
+    patch:
+      default:
+        # basic
+        target: auto
+        threshold: 0%
+        base: auto
+        # advanced
+        branches:
+          - master
+          - v1-10-stable
+          - v1-10-test
+          - v2-0-test
+        if_no_uploads: error
+        if_not_found: success
+        if_ci_failed: error
+        only_pulls: false
+        paths:
+          - "airflow"
+parsers:
+  gcov:
+    branch_detection:
+      conditional: true
+      loop: true
+      method: false
+      macro: false
+
+comment: false