Merge pull request #1545 from theupdateframework/dependabot/pip/securesystemslib-cryptopynacl--0.21.0

build(deps): bump securesystemslib[crypto,pynacl] from 0.20.1 to 0.21.0

Author: Jussi Kukkonen

requirements-pinned.txt

@@ -6,6 +6,6 @@ idna==3.2                 # via requests
 pycparser==2.20           # via cffi
 pynacl==1.4.0             # via securesystemslib
 requests==2.26.0
-securesystemslib[crypto,pynacl]==0.20.1
+securesystemslib[crypto,pynacl]==0.21.0
 six==1.16.0               # via pynacl, securesystemslib
 urllib3==1.26.6           # via requests