Update bitmap-allocator

[wangrunji0408]

• Update dependency bitmap-allocator. LOCK its version.
  Fix the page allocation order.
• Increase kernel heap size to 16MB
• Remove heap rescue since it no longer fits the new version allocator.

[github-actions]

Pull Request Test Coverage Report for Build 95349862

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.04%) to 27.632%

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Totals
Change from base Build 95140253:	0.04%
Covered Lines:	1509
Relevant Lines:	5461

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 95349862

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.04%) to 27.632%

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Totals
Change from base Build 95140253:	0.04%
Covered Lines:	1509
Relevant Lines:	5461

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💛 - Coveralls