charliecloud: update source URL for upstream repository move

Update Source0 URL to reflect upstream move from charliecloud/main to
charliecloud/charliecloud GitLab repository.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>
Signed-off-by: Adrian Reber <[email protected]>

Author: adrianreber

components/runtimes/charliecloud/SPECS/charliecloud.spec

@@ -28,7 +28,7 @@ Release:   1%{?dist}
 License:   Apache-2.0
 Group:     %{PROJ_NAME}/runtimes
 URL:       https://charliecloud.io/
-Source0:   https://gitlab.com/charliecloud/main/-/package_files/204172900/download#/charliecloud-%{version}.tar.gz
+Source0:   https://gitlab.com/charliecloud/charliecloud/-/package_files/204172900/download#/charliecloud-%{version}.tar.gz
 Source1:   Build
 
 BuildRequires: make