Merge pull request #2046 from theupdateframework/dependabot/pip/cffi-1.15.1

build(deps): bump cffi from 1.15.0 to 1.15.1

Author: Jussi Kukkonen

requirements-pinned.txt

@@ -1,5 +1,5 @@
 certifi==2022.6.15        # via requests
-cffi==1.15.0              # via cryptography, pynacl
+cffi==1.15.1              # via cryptography, pynacl
 charset-normalizer==2.1.0 # via requests
 cryptography==37.0.3      # via securesystemslib
 idna==3.3                 # via requests