Bump ecdsa_fun from `84134da` to `f38a5e2`

[dependabot[bot]]

Bumps ecdsa_fun from 84134da to f38a5e2.

Commits

• f38a5e2 Merge pull request #103 from farcaster-project/secp256k1/0.22-v2
• 9051fdb test: check bip340 no auxiliary data tagged hash
• 012f2d5 fix: deterministic nonce in secp256k1-sys-0.5.0
• 4b23e87 Bump secp256k1 version to 0.22
• f51990a Merge pull request #101 from LLFourn/fix-doc-build
• b790771 Fix doc build
• b106023 Merge pull request #95 from nickfarrow/musig-bip-tweak
• 099f216 Allow for non-xonly tweaks, but ruined our nice needs_negation
• 3852048 Merge pull request #94 from nickfarrow/just-musig-rework
• 7917149 Lloyd comment fixups
• Additional commits viewable in compare view

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[delta1]

@dependabot rebase

[dependabot[bot]]

Superseded by #1108.