Merge pull request ktock#348 from ktock/busybox-source

Dockerfile: busybox: use source tarball

Merge pull request ktock#346 from ktock/prepare-v0.7.0

Prepare for v0.7.0

Merge pull request ktock#315 from ktock/prepare-v0.6.5

Prepare for v0.6.5

Merge pull request ktock#278 from ktock/wazero-1.7.2

wazero 1.7.2

Merge pull request ktock#246 from ktock/prepare-v0.6.3

Prepare for v0.6.3

Merge pull request ktock#213 from ktock/prepare-0.6.2

Prepare for 0.6.2

Merge pull request ktock#209 from ktock/prepare-0.6.1

Prepare for v0.6.1

Merge pull request ktock#201 from ktock/prepare-v0.6.0

Prepare for v0.6.0

Merge pull request ktock#188 from ktock/prepare-0.5.3

Prepare for v0.5.3

Merge pull request ktock#165 from ktock/prepare-0.5.2

Prepare for v0.5.2