cleanup

- fix some warnings and mark others as expected
- make use of the msrv bump to 1.93.1 and cleanup compat and workarounds

Cargo.toml

@@ -37,13 +37,15 @@ http = ["dep:warp", "dep:reqwest"]
 crypto-inpure = ["dep:ring"]
 crypto-full = ["crypto-inpure"]
 
+[lints.clippy]
+collapsible_match = "allow"
+
 [lints.rust]
 unexpected_cfgs = { level = "deny", check-cfg = [
     'cfg(rust_version, values("1.87.0"))',
 ] }
 function_casts_as_integer = "deny"
 
-
 [build-dependencies]
 proc-macro2 = "1.0.86"
 quote = "1.0.36"