Merge pull request #1540 from theupdateframework/dependabot/pip/cryptography-3.4.8

build(deps): bump cryptography from 3.4.7 to 3.4.8

Author: Jussi Kukkonen

requirements-pinned.txt

@@ -1,7 +1,7 @@
 certifi==2021.5.30        # via requests
 cffi==1.14.6              # via cryptography, pynacl
 charset-normalizer==2.0.4 # via requests
-cryptography==3.4.7       # via securesystemslib
+cryptography==3.4.8       # via securesystemslib
 idna==3.2                 # via requests
 pycparser==2.20           # via cffi
 pynacl==1.4.0             # via securesystemslib