Bump envconfig from 0.9.1 to 0.10.0 (#92)

Bumps [envconfig](https://github.com/greyblake/envconfig-rs) from 0.9.1 to 0.10.0.
- [Release notes](https://github.com/greyblake/envconfig-rs/releases)
- [Changelog](https://github.com/greyblake/envconfig-rs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/greyblake/envconfig-rs/commits)

---
updated-dependencies:
- dependency-name: envconfig
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

Cargo.lock

@@ -196,11 +196,11 @@ dependencies = [
 
 [[package]]
 name = "envconfig"
-version = "0.9.1"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c0ef0470da909709515ab175d5d12f1b20932f758f731589e1ff198561ab9ca"
+checksum = "ea81cc7e21f55a9d9b1efb6816904978d0bfbe31a50347cb24b2e75564bcac9b"
 dependencies = [
- "envconfig_derive",
+ "envconfig_derive 0.10.0",
 ]
 
 [[package]]
@@ -214,6 +214,17 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "envconfig_derive"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7dfca278e5f84b45519acaaff758ebfa01f18e96998bc24b8f1b722dd804b9bf"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -953,7 +964,7 @@ version = "0.2.0"
 dependencies = [
  "clap",
  "envconfig",
- "envconfig_derive",
+ "envconfig_derive 0.9.1",
  "log",
  "pretty_env_logger",
  "regex",