Add Test and Random dependencies to test/Project.toml

These standard library packages are required for running tests but were
missing from the test environment configuration.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: johankristianss

test/Project.toml

@@ -1,2 +1,4 @@
 [deps]
+Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SHA = "ea8e919c-243c-51af-8825-aaa63cd721ce"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"