Bump digest from 0.10.5 to 0.10.6

Bumps [digest](https://github.com/RustCrypto/traits) from 0.10.5 to 0.10.6.
- [Release notes](https://github.com/RustCrypto/traits/releases)
- [Commits](https://github.com/RustCrypto/traits/compare/digest-v0.10.5...digest-v0.10.6)

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

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

Cargo.lock

@@ -93,7 +93,7 @@ dependencies = [
  "chacha20poly1305",
  "chrono",
  "derive_more",
- "digest 0.10.5",
+ "digest 0.10.6",
  "ecies-ed25519",
  "ed25519-dalek",
  "getopts",
@@ -439,9 +439,9 @@ dependencies = [
 
 [[package]]
 name = "digest"
-version = "0.10.5"
+version = "0.10.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "adfbc57365a37acbd2ebf2b64d7e69bb766e2fea813521ed536f5d0520dcf86c"
+checksum = "8168378f4e5023e7218c89c891c0fd8ecdb5e5e4f18cb78f38cf245dd021e76f"
 dependencies = [
  "block-buffer 0.10.0",
  "crypto-common",
@@ -1186,7 +1186,7 @@ checksum = "82e6b795fe2e3b1e845bafcb27aa35405c4d47cdfc92af5fc8d3002f76cebdc0"
 dependencies = [
  "cfg-if",
  "cpufeatures",
- "digest 0.10.5",
+ "digest 0.10.6",
 ]
 
 [[package]]

Cargo.toml

@@ -15,7 +15,7 @@ getopts = "0.2.21"
 log = "0.4.17"
 simplelog = "0.12.0"
 toml = "0.7.2"
-digest = "0.10.5"
+digest = "0.10.6"
 sha2 = "0.10.6"
 ed25519-dalek = "1.0"
 x25519-dalek = "1.2"