Throws IllegalArgumentException when semver task is executed

[rising3]

Describe the bug IllegalArgumentException is thrown when running semver task in a configuration where Jar task is disabled. The problem is that the semverLatest task is not running before the semver task.

To Reproduce Steps to reproduce the behavior:

1. build.gradle:

   plugins {
       id "com.github.rising3.semver" version "0.7.0"
   }

2. Execute gradle semver

3. See error

   $ gradle semver
   
   FAILURE: Build failed with an exception.
   
   * What went wrong:
   Execution failed for task ':semver'.
   > Illegal Argument: unspecified
   
   * Try:
   Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
   
   * Get more help at https://help.gradle.org
   
   BUILD FAILED in 6s
   1 actionable task: 1 executed

Expected behavior You should always run the semverLatest task before the semver task.

Desktop (please complete the following information):

• OS: macOS Big Sur, Fedora 34
• Java 16
• Gradle 7.2
  • semver-gradle-plugin 0.7.0