add --init to docker run commands in builds to prevent excessive resource consumption

[sxa]

Fixes #1066

Testing with this branch at:

• https://ci.adoptium.net/job/build-scripts/job/jobs/job/jdk22u/job/jdk22u-linux-aarch64-temurin/18
• https://ci.adoptium.net/job/build-scripts/job/jobs/job/jdk22u/job/jdk22u-linux-riscv64-temurin/45

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[andrew-m-leonard]

lgtm

[karianna]

@sxa If your tests were good please go ahead and merge!