chore: Refine git source permissions

- Update the `unknown-git` setting to enforce strict rules
- Add "lurk-lab" as a new allowed organization on Github
- disable the gitlab and bitbucket organization permissions

deny.toml

@@ -256,7 +256,7 @@ skip-tree = [
 unknown-registry = "warn"
 # Lint level for what to happen when a crate from a git repository that is not
 # in the allow list is encountered
-unknown-git = "warn"
+unknown-git = "deny"
 # List of URLs for allowed crate registries. Defaults to the crates.io index
 # if not specified. If it is specified but empty, no registries are allowed.
 allow-registry = ["https://github.com/rust-lang/crates.io-index"]
@@ -267,6 +267,6 @@ allow-git = []
 # 1 or more github.com organizations to allow git sources for
 github = [""]
 # 1 or more gitlab.com organizations to allow git sources for
-gitlab = [""]
+# gitlab = [""]
 # 1 or more bitbucket.org organizations to allow git sources for
-bitbucket = [""]
+# bitbucket = [""]