Update cipher requirement from 0.3.0 to 0.4.4

[dependabot[bot]]

Updates the requirements on cipher to permit the latest version.

Commits

• 0af93f6 cipher: release v0.4.4 (#1278)
• 0de66ad Fix unsoundness with block size equal to zero (#1277)
• 48517bc elliptic-curve: remove redundant bounds (#1274)
• 8bd4261 elliptic-curve v0.13.2 (#1273)
• 71783b9 elliptic-curve: PublicKey <-> SEC1 conversions (#1272)
• 947a4db README.md: update MSRVs
• 5691d07 password-hash v0.5.0 (#1271)
• 2975bae password-hash v0.5.0-rc.0 (#1269)
• c26f154 password-hash: use doc_auto_cfg (#1268)
• fa4185d password-hash: add getrandom feature (#1267)
• Additional commits viewable in compare view

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