Update Clippy's tester dependency.

Author: m-ou-se

Cargo.lock

@@ -4826,9 +4826,9 @@ dependencies = [
 
 [[package]]
 name = "tester"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0639d10d8f4615f223a57275cf40f9bdb7cfbb806bcb7f7cc56e3beb55a576eb"
+checksum = "89e8bf7e0eb2dd7b4228cc1b6821fc5114cd6841ae59f652a85488c016091e5f"
 dependencies = [
  "cfg-if",
  "getopts",

src/tools/clippy/Cargo.toml

@@ -28,7 +28,7 @@ termize = "0.1"
 
 [dev-dependencies]
 compiletest_rs = { version = "0.10", features = ["tmp"] }
-tester = "0.9"
+tester = "0.9.1"
 regex = "1.5"
 toml = "0.5"
 walkdir = "2.3"