Flask: Bump pandas from 1.4.2 to 1.5.3 in /flask

Bumps [pandas](https://github.com/pandas-dev/pandas) from 1.4.2 to 1.5.3.
- [Release notes](https://github.com/pandas-dev/pandas/releases)
- [Changelog](https://github.com/pandas-dev/pandas/blob/main/RELEASE.md)
- [Commits](pandas-dev/pandas@v1.4.2...v1.5.3)

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

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

flask/requirements-dev.txt

@@ -96,7 +96,7 @@ packaging==21.3
     # via
     #   marshmallow
     #   pytest
-pandas==1.4.2
+pandas==1.5.3
     # via -r requirements.in
 pathspec==0.9.0
     # via black
@@ -160,11 +160,7 @@ sqlalchemy==1.4.37
 starkbank-ecdsa==2.0.3
     # via sendgrid
 tomli==2.0.1
-    # via
-    #   black
-    #   coverage
-    #   pylint
-    #   pytest
+    # via pytest
 tomlkit==0.11.0
     # via pylint
 tzdata==2022.1

flask/requirements.txt

@@ -70,7 +70,7 @@ numpy==1.22.4
     # via pandas
 packaging==21.3
     # via marshmallow
-pandas==1.4.2
+pandas==1.5.3
     # via -r requirements.in
 prometheus-client==0.14.1
     # via prometheus-flask-exporter