Draft release support jaeger UI (#4802)

## Description of the changes
- Makes the title and repo configurable to support drafting jaeger-ui
releases.

## How was this change tested?
- Run `make draft-release` using this script in both jaeger and
jaeger-ui repos.

## Checklist
- [x] I have read
https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
- [x] I have signed all commits

---------

Signed-off-by: albertteoh <see.kwang.teoh@gmail.com>

scripts/draft-release.py

@@ -1,21 +1,22 @@
 #!/usr/bin/env python3
 
+import argparse
 import re
 import subprocess
 
 
-release_header_pattern = re.compile(r"([\d]+\.[\d]+\.[\d]+) \([\d]{4}-[\d]{2}-[\d]{2}\)", flags=0)
+release_header_pattern = re.compile(r".*(\d+\.\d+\.\d) \(\d{4}-\d{2}-\d{2}\)", flags=0)
 underline_pattern = re.compile(r"^[-]+$", flags=0)
 
 
-def main():
+def main(title, repo):
     changelog_text, version = get_changelog()
     print(changelog_text)
     output_string = subprocess.check_output(
         ["gh", "release", "create", f"v{version}",
          "--draft",
-         "--title", f"Release v{version}",
-         "--repo", "jaegertracing/jaeger",
+         "--title", f"{title} v{version}",
+         "--repo", f"jaegertracing/{repo}",
          "-F", "-"],
         input=changelog_text,
         text=True,
@@ -51,4 +52,13 @@ def get_changelog():
 
 
 if __name__ == "__main__":
-    main()
+    parser = argparse.ArgumentParser(description='List changes based on git log for release notes.')
+
+    parser.add_argument('--title', type=str, default='Release',
+                        help='The title of the release. (default: Release)')
+    parser.add_argument('--repo', type=str, default='jaeger',
+                        help='The repository name where the draft release will be created. (default: jaeger)')
+
+    args = parser.parse_args()
+
+    main(args.title, args.repo)