Dependency updates (#255)

Author: Dandandan

.github/workflows/rust.yml

@@ -49,7 +49,7 @@ jobs:
       uses: actions-rs/[email protected]
       with:
         crate: cargo-tarpaulin
-        version: 0.13.3
+        version: 0.14.2
         use-tool-cache: true
     - name: Checkout
       uses: actions/checkout@v2

Cargo.toml

@@ -23,14 +23,14 @@ path = "src/lib.rs"
 json_example = ["serde_json", "serde"]
 
 [dependencies]
-bigdecimal = { version = "0.1.0", features = ["serde"], optional = true }
-log = "0.4.5"
+bigdecimal = { version = "0.1", features = ["serde"], optional = true }
+log = "0.4"
 serde = { version = "1.0", features = ["derive"], optional = true }
 # serde_json is only used in examples/cli, but we have to put it outside
 # of dev-dependencies because of
 # https://github.com/rust-lang/cargo/issues/1596
 serde_json = { version = "1.0", optional = true }
 
 [dev-dependencies]
-simple_logger = "1.0.1"
+simple_logger = "1.6"
 matches = "0.1"