* fix: improve groupid extraction for Jenkins plugins
Consider the `Group-Id` java manifest property as this is typically set
for Jenkins plugins if there is no pom file
Signed-off-by: Weston Steimel <commits@weston.slmail.me>
* test: update java purl integration test image
Signed-off-by: Weston Steimel <commits@weston.slmail.me>
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Signed-off-by: Weston Steimel <commits@weston.slmail.me>