Bump gspread from 6.1.4 to 6.2.1 (#2644)

Bumps [gspread](https://github.com/burnash/gspread) from 6.1.4 to 6.2.1.
- [Release notes](https://github.com/burnash/gspread/releases)
- [Changelog](https://github.com/burnash/gspread/blob/master/HISTORY.rst)
- [Commits](burnash/gspread@v6.1.4...v6.2.1)

---
updated-dependencies:
- dependency-name: gspread
  dependency-version: 6.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements.txt

@@ -2,7 +2,7 @@ alembic==1.14.1
 argparse==1.4.0
 filelock==3.18.0
 google-cloud-bigquery==3.33.0
-gspread==6.1.4
+gspread==6.2.1
 humanize>=0.5.1
 icalendar==6.3.1
 Jinja2==3.1.6