Make kerberos an optional and devel dependency for impala and fab (ap…

…ache#41616)

The improved compatibility tests detected that FAB provider tests
have implicit dependency on kerberos - similar as impala. This change
make kerberos an optional dependency of FAB as well as it as
development dependency for both impala and FAB.

.github/workflows/basic-tests.yml

@@ -154,8 +154,8 @@ jobs:
         env:
           HATCH_ENV: "test"
         working-directory: ./clients/python
-      - name: "Install Airflow in editable mode with fab for webserver tests"
-        run: pip install -e ".[fab]"
+      - name: "Install Airflow with fab for webserver tests"
+        run: pip install ".[fab]"
       - name: "Install Python client"
         run: pip install ./dist/apache_airflow_client-*.whl
       - name: "Initialize Airflow DB and start webserver"

airflow/providers/apache/impala/provider.yaml

@@ -48,6 +48,8 @@ additional-extras:
     dependencies:
       - kerberos>=1.3.0
 
+devel-dependencies:
+  - kerberos>=1.3.0
 
 integrations:
   - integration-name: Apache Impala

airflow/providers/fab/provider.yaml

@@ -57,6 +57,14 @@ dependencies:
   - google-re2>=1.0
   - jmespath>=0.7.0
 
+additional-extras:
+  - name: kerberos
+    dependencies:
+      - kerberos>=1.3.0
+
+devel-dependencies:
+  - kerberos>=1.3.0
+
 config:
   fab:
     description: This section contains configs specific to FAB provider.

generated/provider_dependencies.json

@@ -207,7 +207,9 @@
       "apache-airflow>=2.8.0",
       "impyla>=0.18.0,<1.0"
     ],
-    "devel-deps": [],
+    "devel-deps": [
+      "kerberos>=1.3.0"
+    ],
     "plugins": [],
     "cross-providers-deps": [
       "common.sql"
@@ -556,7 +558,9 @@
       "google-re2>=1.0",
       "jmespath>=0.7.0"
     ],
-    "devel-deps": [],
+    "devel-deps": [
+      "kerberos>=1.3.0"
+    ],
     "plugins": [],
     "cross-providers-deps": [],
     "excluded-python-versions": [],