try to get exact semver for {version} replacer

Author: Araxeus

README.md

@@ -174,7 +174,7 @@ This versioning strategy allows for more granular control over the version of a
 
 You can download release assets by using the `{release}/` placeholder in the file path.
 
-Additionally, you can use the `{version}` placeholder to refer to the version of the dependency, without the trailing `v`. Here's an example:
+Additionally, you can use the `{version}` placeholder to refer to the semver version of the dependency, (without the trailing `v` or `-alpha` etc). Here's an example:
 
 ```json
 {

lib/utils.ts

@@ -91,7 +91,10 @@ export async function readableToFile(
 }
 
 export function replaceVersion(path: string, version: string) {
-    return path.replace('{version}', trimStartMatches(version, 'v'));
+    return path.replace(
+        '{version}',
+        /\d+\.\d+\.\d+/.exec(version)?.[0] || trimStartMatches(version, 'v'),
+    );
 }
 
 export async function writeLockfile(