build(deps): bump displaydoc from 0.2.0 to 0.2.1 (#1959)

Bumps [displaydoc](https://github.com/yaahc/displaydoc) from 0.2.0 to 0.2.1.
- [Release notes](https://github.com/yaahc/displaydoc/releases)
- [Changelog](https://github.com/yaahc/displaydoc/blob/master/CHANGELOG.md)
- [Commits](https://github.com/yaahc/displaydoc/compare/v0.2.0...v0.2.1)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.lock

@@ -912,9 +912,9 @@ dependencies = [
 
 [[package]]
 name = "displaydoc"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f98e1bbbcbb1b2646d6e900da42974b641eb784851adcd4f0ae4c07c8bc7b42b"
+checksum = "3274a6bc8a6a4521291b53b9dcb8345e963fe931c3fc462a7d3ead71d7ccd30d"
 dependencies = [
  "proc-macro2 1.0.24",
  "quote 1.0.7",

zebra-chain/Cargo.toml

@@ -38,7 +38,7 @@ proptest = { version = "0.10", optional = true }
 proptest-derive = { version = "0.3.0", optional = true }
 
 # ZF deps
-displaydoc = "0.2.0"
+displaydoc = "0.2.1"
 ed25519-zebra = "2"
 equihash = "0.1"
 #redjubjub = "0.2"

zebra-consensus/Cargo.toml

@@ -11,7 +11,7 @@ blake2b_simd = "0.5.11"
 bellman = { git = "https://github.com/zkcrypto/bellman", rev = "bd4af09f50a4d020a3672aff37c4f3f2da2bb36b" }
 bls12_381 = "0.4.0"
 chrono = "0.4.19"
-displaydoc = "0.2.0"
+displaydoc = "0.2.1"
 jubjub = "0.6.0"
 lazy_static = "1.4.0"
 once_cell = "1.7"

zebra-script/Cargo.toml

@@ -11,7 +11,7 @@ edition = "2018"
 zcash_script = "0.1.5"
 zebra-chain = { path = "../zebra-chain" }
 thiserror = "1.0.24"
-displaydoc = "0.2.0"
+displaydoc = "0.2.1"
 
 [dev-dependencies]
 hex = "0.4.3"

zebra-state/Cargo.toml

@@ -22,7 +22,7 @@ tower = { version = "0.4", features = ["buffer", "util"] }
 tracing = "0.1"
 thiserror = "1.0.24"
 tokio = { version = "0.3.6", features = ["sync"] }
-displaydoc = "0.2.0"
+displaydoc = "0.2.1"
 rocksdb = "0.15.0"
 tempdir = "0.3.7"
 chrono = "0.4.19"