Bump amcrest from 1.8.0 to 1.8.1

Bumps [amcrest](https://github.com/tchellomello/python-amcrest) from 1.8.0 to 1.8.1.
- [Release notes](https://github.com/tchellomello/python-amcrest/releases)
- [Commits](https://github.com/tchellomello/python-amcrest/compare/1.8.0...1.8.1)

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

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

requirements.txt

@@ -1,3 +1,3 @@
-amcrest==1.8.0
+amcrest==1.8.1
 paho-mqtt==1.5.1
 python-slugify==5.0.2