feat(docker): Improve docker build and prevent double path in naming

[heliocastro]

No description provided.

[goneall]

Looks like the CI is failing with the following:

70.93 cp: cannot stat 'target/tools-java-268/merge-jar-with-dependencies.jar': No such file or directory
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WARNING: No output specified with docker-container driver. Build result will only remain in the build cache. To push result image into registry use --push or to load image into docker use --load
ERROR: failed to build: failed to solve: process "/bin/sh -c mvn clean org.jacoco:jacoco-maven-plugin:prepare-agent install     && mkdir -p /usr/lib/java/spdx     && cp target/tools-java-$TOOLS_JAVA_VERSION-jar-with-dependencies.jar /usr/lib/java/spdx/" did not complete successfully: exit code: 1
Reference
Check build summary support
Error: buildx failed with: ERROR: failed to build: failed to solve: process "/bin/sh -c mvn clean org.jacoco:jacoco-maven-plugin:prepare-agent install     && mkdir -p /usr/lib/java/spdx     && cp target/tools-java-$TOOLS_JAVA_VERSION-jar-with-dependencies.jar /usr/lib/java/spdx/" did not complete successfully: exit code: 1