build(deps): bump cryptography from 42.0.5 to 43.0.1 in /src/install

Bumps [cryptography](https://github.com/pyca/cryptography) from 42.0.5 to 43.0.1.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@42.0.5...43.0.1)

---
updated-dependencies:
- dependency-name: cryptography
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

src/install/requirements_backend.txt

@@ -1,4 +1,4 @@
-cryptography==42.0.5
+cryptography==43.0.1
 docker~=7.1.0
 MarkupSafe==2.1.1
 networkx==2.6.3