fix: parsing database kind is more permissive (#57)

Author: robjtede

confik/CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Unreleased
 
+- Parsing of database kind is now case-insensitive.
 - Minimum supported Rust version (MSRV) is now 1.67 due to `toml_edit` dependency.
 
 ## 0.11.0

confik/src/common.rs

@@ -16,9 +16,9 @@ impl str::FromStr for DatabaseKind {
     type Err = MissingValue;
 
     fn from_str(input: &str) -> Result<Self, Self::Err> {
-        match input {
-            "mysql" => Ok(Self::Mysql),
-            "postgres" => Ok(Self::Postgres),
+        match () {
+            _ if input.eq_ignore_ascii_case("mysql") => Ok(Self::Mysql),
+            _ if input.eq_ignore_ascii_case("postgres") => Ok(Self::Postgres),
             _ => Err(Self::Err::default()),
         }
     }