Resolve stubtest allowlist entries for ldap3 (#9532)

stubs/ldap3/@tests/requirements-stubtest.txt

@@ -0,0 +1 @@
+gssapi

stubs/ldap3/@tests/stubtest_allowlist.txt

@@ -1 +0,0 @@
-ldap3.protocol.sasl.kerberos  # requires gssapi package to import

stubs/ldap3/METADATA.toml

@@ -1,2 +1,8 @@
 version = "2.9.*"
 requires = ["types-pyasn1"]
+
+[tool.stubtest]
+apt_dependencies = ["libkrb5-dev"]
+# No need to install on the CI. Leaving here as information for MacOs/Windows contributors.
+# brew_dependencies = ["krb5"]
+# choco_dependencies = ["mitkerberos"]

tests/check_consistent.py

@@ -191,7 +191,7 @@ def check_metadata() -> None:
                 assert key in tk, f"Unrecognised {tool} key {key} for {distribution}"
 
         tool_stubtest = data.get("tool", {}).get("stubtest", {})
-        specified_stubtest_platforms = set(tool_stubtest.get("platforms", []))
+        specified_stubtest_platforms = set(tool_stubtest.get("platforms", ["linux"]))
         assert (
             specified_stubtest_platforms <= supported_stubtest_platforms
         ), f"Unrecognised platforms specified: {supported_stubtest_platforms - specified_stubtest_platforms} for {distribution}"