Allow github requirements specs in hassfest for non-core integrations (#124925)

* allow all requirements specs

* remove unnecessary tests

* Revert "remove unnecessary tests"

This reverts commit 0a2af0318d.

* Revert "allow all requirements specs"

This reverts commit d15cd27f7b.

* be lenient only for custom integrations

* don't allow blanks as requested

---------

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>

script/hassfest/requirements.py

@@ -84,18 +84,19 @@ def validate_requirements_format(integration: Integration) -> bool:
         if not version:
             continue
 
-        for part in version.split(";", 1)[0].split(","):
-            version_part = PIP_VERSION_RANGE_SEPARATOR.match(part)
-            if (
-                version_part
-                and AwesomeVersion(version_part.group(2)).strategy
-                == AwesomeVersionStrategy.UNKNOWN
-            ):
-                integration.add_error(
-                    "requirements",
-                    f"Unable to parse package version ({version}) for {pkg}.",
-                )
-                continue
+        if integration.core:
+            for part in version.split(";", 1)[0].split(","):
+                version_part = PIP_VERSION_RANGE_SEPARATOR.match(part)
+                if (
+                    version_part
+                    and AwesomeVersion(version_part.group(2)).strategy
+                    == AwesomeVersionStrategy.UNKNOWN
+                ):
+                    integration.add_error(
+                        "requirements",
+                        f"Unable to parse package version ({version}) for {pkg}.",
+                    )
+                    continue
 
     return len(integration.errors) == start_errors