Bump sdnotify from 0.1.3 to 0.2.0 (#379)

Bumps [sdnotify](https://github.com/polachok/sdnotify) from 0.1.3 to 0.2.0.
- [Release notes](https://github.com/polachok/sdnotify/releases)
- [Commits](https://github.com/polachok/sdnotify/compare/v0.1.3...v0.2.0)

---
updated-dependencies:
- dependency-name: sdnotify
  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

@@ -1730,9 +1730,9 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
 name = "sdnotify"
-version = "0.1.3"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71ce7eac2075a4562fbcbad544cd55d72ebc760e0a5594a7c8829cf2b4b42a7a"
+checksum = "1ad78c5d206dedabda370ab0b669c40623a446699ed4604829d0c600420c8d7c"
 
 [[package]]
 name = "security-framework"

Cargo.toml

@@ -47,7 +47,7 @@ patreon = { path = "./lib/patreon" }
 
 # os-specific dependencies
 [target.'cfg(target_os = "linux")'.dependencies]
-sdnotify = { version = "0.1", default-features = false }
+sdnotify = { version = "0.2", default-features = false }
 
 [build-dependencies]
 ructe = { version = "0.13", features = ["warp02"] }