Update dependencies and project style.

.gitignore

@@ -1,14 +1,7 @@
 # Generated by Cargo
-# will have compiled files and executables
+Cargo.lock
 debug/
 target/
 
-# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
-Cargo.lock
-
-# These are backup files generated by rustfmt
-**/*.rs.bk
-
-# MSVC Windows builds of rustc generate these, which store debugging information
-*.pdb
+# Code coverage results
+coverage/

Cargo.toml

@@ -3,10 +3,10 @@
 [package]
 name = "gravatar-rs"
 description = "Gravatar image URL library"
-authors = ["Holllo <helllo@holllo.cc>"]
-version = "0.2.0"
-license = "MIT OR Apache-2.0"
 repository = "https://github.com/Holllo/gravatar-rs"
+license = "MIT OR Apache-2.0"
+version = "0.2.0"
+authors = ["Holllo <helllo@holllo.cc>"]
 edition = "2021"
 keywords = ["gravatar", "ivatar", "libravatar"]
 
@@ -15,7 +15,7 @@ path = "source/lib.rs"
 
 [dependencies]
 md5 = "0.7.0"
-urlencoding = "2.1.0"
+urlencoding = "2.1.2"
 
 [dev-dependencies]
-insta = "1.14.0"
+insta = "1.20.0"