Bump boto3 from 1.17.54 to 1.17.55

Bumps [boto3](https://github.com/boto/boto3) from 1.17.54 to 1.17.55.
- [Release notes](https://github.com/boto/boto3/releases)
- [Changelog](https://github.com/boto/boto3/blob/develop/CHANGELOG.rst)
- [Commits](boto/boto3@1.17.54...1.17.55)

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

requirements-test.txt

@@ -2,7 +2,7 @@
 pytest-cov==2.11.1
 pytest-xdist==2.2.1
 coverage==5.5 # pytest-cov
-boto3==1.17.54
+boto3==1.17.55
 mirakuru==2.3.0
 port-for==0.4
 pytest==6.2.3