build(deps): bump ppv-lite86 from 0.2.6 to 0.2.8

Bumps [ppv-lite86](https://github.com/cryptocorrosion/cryptocorrosion) from 0.2.6 to 0.2.8.
- [Release notes](https://github.com/cryptocorrosion/cryptocorrosion/releases)
- [Commits](https://github.com/cryptocorrosion/cryptocorrosion/compare/ppv-lite86-0.2.6...ppv-lite86-0.2.8)

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

Cargo.lock

@@ -883,7 +883,7 @@ dependencies = [
 
 [[package]]
 name = "ppv-lite86"
-version = "0.2.6"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -945,7 +945,7 @@ name = "rand_chacha"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "ppv-lite86 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ppv-lite86 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1718,7 +1718,7 @@ dependencies = [
 "checksum postgres-native-tls 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "616bfdeeb542b2b0d444391dbcdd91e9a800bc7f35950c9741fe24b07e958900"
 "checksum postgres-protocol 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3f611afe4d1407ebe7f3ced1ffc66f730fac1b1c13085e230a8cdcb921e97710"
 "checksum postgres-types 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e634590e8812c500088d88db721195979223dabb05149f43cb50931d0ff5865d"
-"checksum ppv-lite86 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "74490b50b9fbe561ac330df47c08f3f33073d2d00c150f719147d7c54522fa1b"
+"checksum ppv-lite86 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "237a5ed80e274dbc66f86bd59c1e25edc039660be53194b5fe0a482e0f2612ea"
 "checksum proc-macro-hack 0.5.15 (registry+https://github.com/rust-lang/crates.io-index)" = "0d659fe7c6d27f25e9d80a1a094c223f5246f6a6596453e09d7229bf42750b63"
 "checksum proc-macro-nested 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8e946095f9d3ed29ec38de908c22f95d9ac008e424c7bcae54c75a79c527c694"
 "checksum proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)" = "8872cf6f48eee44265156c111456a700ab3483686b3f96df4cf5481c89157319"