fix(deps): update dependency cryptography to v38

This MR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
cryptography (changelog)	^37.0.2 -> ^38.0.0

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Release Notes

pyca/cryptography

v38.0.1

Compare Source

v38.0.0

Compare Source

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This MR has been generated by Renovate Bot.

added dependency-update label

mentioned in issue #8 (closed)

changed the description

mentioned in commit 28e5eaa4

merged