set max artifact size to 350M and artifact expiry to 2 weeks

Per discussion on ticket.  Merging to match deployed reality.

Bug: T292372

settings-gitlab-test.yaml

@@ -121,3 +121,10 @@ import_sources:
   - gitea
   - manifest
   - phabricator
+
+# Increase default artifact size limit of 100M, decrease artifact expiry time.
+# See https://phabricator.wikimedia.org/T292372 for background.  This is not a
+# well-considered strong policy statement or anything, and should definitely be
+# revisited:
+max_artifacts_size: 350
+default_artifacts_expire_in: "2 weeks"

settings-replica.yaml

@@ -121,3 +121,10 @@ import_sources:
   - gitea
   - manifest
   - phabricator
+
+# Increase default artifact size limit of 100M, decrease artifact expiry time.
+# See https://phabricator.wikimedia.org/T292372 for background.  This is not a
+# well-considered strong policy statement or anything, and should definitely be
+# revisited:
+max_artifacts_size: 350
+default_artifacts_expire_in: "2 weeks"

settings.yaml

@@ -121,3 +121,10 @@ import_sources:
   - gitea
   - manifest
   - phabricator
+
+# Increase default artifact size limit of 100M, decrease artifact expiry time.
+# See https://phabricator.wikimedia.org/T292372 for background.  This is not a
+# well-considered strong policy statement or anything, and should definitely be
+# revisited:
+max_artifacts_size: 350
+default_artifacts_expire_in: "2 weeks"