Bump pygments from 2.6.1 to 2.7.4 in /actions/hls_helloworld_python/sw (#125)

Bumps [pygments](https://github.com/pygments/pygments) from 2.6.1 to 2.7.4.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.6.1...2.7.4)

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

Author: dependabot[bot]

actions/hls_helloworld_python/sw/requirements.txt

@@ -36,7 +36,7 @@ pkg-resources==0.0.0
 prometheus-client==0.7.1
 prompt-toolkit==2.0.10
 ptyprocess==0.6.0
-Pygments==2.6.1
+Pygments==2.7.4
 pyparsing==2.4.7
 pyrsistent==0.16.0
 python-config==0.1.2