Bump arrow from 1.2.2 to 1.2.3

Bumps [arrow](https://github.com/arrow-py/arrow) from 1.2.2 to 1.2.3.
- [Release notes](https://github.com/arrow-py/arrow/releases)
- [Changelog](https://github.com/arrow-py/arrow/blob/master/CHANGELOG.rst)
- [Commits](arrow-py/arrow@1.2.2...1.2.3)

---
updated-dependencies:
- dependency-name: arrow
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,4 +1,4 @@
-arrow==1.2.2
+arrow==1.2.3
 wget==3.2.0
 beautifulsoup4==4.11.1
 lxml==4.9.1