build(deps): bump spki from 0.8.0-rc.0 to 0.8.0-rc.1

Bumps [spki](https://github.com/RustCrypto/formats) from 0.8.0-rc.0 to 0.8.0-rc.1.
- [Commits](RustCrypto/formats@spki/v0.8.0-rc.0...spki/v0.8.0-rc.1)

---
updated-dependencies:
- dependency-name: spki
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.toml

@@ -23,7 +23,7 @@ digest = { version = "=0.11.0-pre.9", default-features = false, features = ["all
 pkcs1 = { version = "0.8.0-rc.0", default-features = false, features = ["alloc", "pkcs8"] }
 pkcs8 = { version = "0.11.0-rc.0", default-features = false, features = ["alloc"] }
 signature = { version = "=2.3.0-pre.4", default-features = false, features = ["alloc", "digest", "rand_core"] }
-spki = { version = "0.8.0-rc.0", default-features = false, features = ["alloc"] }
+spki = { version = "0.8.0-rc.1", default-features = false, features = ["alloc"] }
 zeroize = { version = "1.5", features = ["alloc"] }
 
 # optional dependencies