feature-flag experimental module metadata (#85351)

* added ansible-test integration env/set directive for aliases
* applied to module-serialization-profiles test to enable feature flag

Co-authored-by: Matt Clay <matt@mystile.com>
(cherry picked from commit 46abcfcc82)

test/integration/targets/ansible-test-integration/ansible_collections/ns/col/tests/integration/targets/hello/aliases

@@ -1 +1,3 @@
 context/controller
+env/set/A_VAR/something
+env/set/A_PATH//an/absolute/path

test/integration/targets/ansible-test-integration/ansible_collections/ns/col/tests/integration/targets/hello/tasks/main.yml

@@ -5,3 +5,5 @@
 - assert:
     that:
       - hello.message == 'Hello Ansibull'
+      - lookup('env', 'A_VAR') == 'something'
+      - lookup('env', 'A_PATH') == '/an/absolute/path'

test/integration/targets/module-serialization-profiles/aliases

@@ -1,2 +1,3 @@
 context/target
 shippable/posix/group1
+env/set/_ANSIBLE_MODULE_METADATA/1

test/lib/ansible_test/_internal/commands/integration/__init__.py

@@ -825,6 +825,7 @@ def integration_environment(
         env.update(ANSIBLE_TEST_REMOTE_INTERPRETER='')
 
     env.update(integration)
+    env.update(target.env_set)
 
     return env
 

test/lib/ansible_test/_internal/target.py

@@ -582,6 +582,14 @@ class IntegrationTarget(CompletionTarget):
         else:
             static_aliases = tuple()
 
+        # non-group aliases which need to be extracted before group mangling occurs
+
+        self.env_set: dict[str, str] = {
+            match.group('key'): match.group('value') for match in (
+                re.match(r'env/set/(?P<key>[^/]+)/(?P<value>.*)', alias) for alias in static_aliases
+            ) if match
+        }
+
         # modules
 
         if self.name in modules: