Switch `CredentialsMatcher` implementations to be `record`s

As a follow-up to #1001, it would be nice to simplify `Matcher` implementations. For example `IdMatcher` could be reduced to just

```java
public record IdMatcher(@NonNull String id) implements CredentialsMatcher {
@Override
public boolean matches(@NonNull Credentials item) {
return item instanceof IdCredentials idc && id.equals(idc.getId());
}
}
```

This would replace the advice in https://github.com/jenkinsci/credentials-plugin/blob/36c1cee14873c854cb5b46030c0a35a5f68fe05f/src/main/java/com/cloudbees/plugins/credentials/CredentialsMatcher.java#L32-L34

It is important to retain binary compatibility for the constructors, since many plugins appear to instantiate at least `IdCredentials` directly rather than going through `CredentialsMatchers.withId`.