Update sha2 requirement from 0.8.0 to 0.9.5

[dependabot-preview[bot]]

Updates the requirements on sha2 to permit the latest version.

Commits

• 06586d8 sha-1 v0.9.6 (#271)
• ca27667 sha1+sha2: use cpufeatures v0.1.1 crate release (#269)
• 12493fc sha1: use cpufeatures to detect SHA-1 on aarch64 (#268)
• d13936a sha2: use cpufeatures to detect sha2 on aarch64 (#267)
• 15a0468 sha2: fix missing documentation on compression functions (#266)
• c1ed4b1 sha2 v0.9.4 (#265)
• 1bf7688 sha-1 v0.9.5 (#264)
• bf761ed sha1+sha2: switch from cpuid-bool to cpufeatures (#263)
• 1e775ed sha2: bump sha2-asm to v0.6.1 release (#262)
• e8b3abe feat(sha2): use latest sha2-asm and enable M1 (#261)
• Additional commits viewable in compare view

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