Bump cryptography from 3.4.7 to 43.0.1 in /key_did_resolver

Bumps [cryptography](https://github.com/pyca/cryptography) from 3.4.7 to 43.0.1.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@3.4.7...43.0.1)

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

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

key_did_resolver/requirements.txt

@@ -1,3 +1,3 @@
-cryptography==3.4.7
+cryptography==43.0.1
 multiformats==0.3.1
 base58==2.1.1