Review implicit SHA-1 DSA signatures

Proprietary

Find resolved DSACryptoServiceProvider SignData(byte[]/Stream), SignData(byte[],int,int), and VerifyData(byte[],byte[]) calls without changing their fixed SHA-1 algorithm, provider or keys. An algorithm upgrade changes existing signature compatibility; a provider replacement can change CSP key-container behavior. Leave explicit-hash overloads, hash-only methods, method groups, lookalikes, unresolved calls and conditional snapshots unchanged. Opt-in review recipe.

OpenRewrite.Recipes.CSharp.Migration.Dotnet.Net6.FindLegacyDsaSignatures

mod run . --recipe=OpenRewrite.Recipes.CSharp.Migration.Dotnet.Net6.FindLegacyDsaSignatures

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