ci: Add UBSAN test to the sanitizer

[boquan-fang]

Resolved issues:

Resolves the second requirement #4684. This PR is also a alternative for PR#4734.

Description of changes:

• Change the file name of buildspec_asan.yml to buildspec_sanitizer.yml.
• Add -DUBSAN=ON to buildspec_sanitizer.yml.

Call-outs:

• If additional sanitizers needs to be added here, the runtime of such change needs to be properly tested.
• Current runtime for such build is 8 minutes and 47 seconds. There is no build runtime regression.
• Don't enable auto-merge. Need to immediately change the CI task to the new buildspec_sanitizer.yml file as source.

Testing:

Need to prove the one build commands with both ASAN and UBSAN will still check for memory leak and undefined behavior.

• Remove some fixes from PR#4722 to intentionally trigger undefined behavior.
• Test the code on CodeBuild, the results are as followed:

226/268 Test #233: s2n_stuffer_test .................................***Failed    0.01 sec
Running /codebuild/output/src652319342/src/github.com/boquan-fang/s2n-tls/tests/unit/s2n_stuffer_test.c ... /codebuild/output/src652319342/src/github.com/boquan-fang/s2n-tls/stuffer/s2n_stuffer.c:443:40: runtime error: applying zero offset to null pointer
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /codebuild/output/src652319342/src/github.com/boquan-fang/s2n-tls/stuffer/s2n_stuffer.c:443:40

Link: https://us-west-2.console.aws.amazon.com/codesuite/codebuild/024603541914/projects/AddressSanitizer/batch/AddressSanitizer%3A9f488b1a-2ce9-463b-90b6-ea022fc90dfc?region=us-west-2
The build detects UBSAN violation.

• With that error in place, remove DEFER_CLEANUP Macro in s2n_record_size_test.c. That should trigger memory leak.
• Test it on CodeBuild, the builder detects memory leak in that specific test:

170/268 Test #161: s2n_record_size_test .............................***Failed 0.91 sec Running /codebuild/output/src1161013577/src/github.com/boquan-fang/s2n-tls/tests/unit/s2n_record_size_test.c ... ================================================================= ==5305==ERROR: LeakSanitizer: detected memory leaks Direct leak of 4208 byte(s) in 1 object(s) allocated from: #0 0x563e4544706e in __interceptor_malloc (/codebuild/output/src1161013577/src/github.com/boquan-fang/s2n-tls/build/bin/s2n_record_size_test+0x1c806e) (BuildId: a26d759140b97c61726bac02fa2c0fcfceae8dce) #1 0x563e455b16b9 in s2n_mem_malloc_no_mlock_impl /codebuild/output/src1161013577/src/github.com/boquan-fang/s2n-tls/utils/s2n_mem.c:127:12 #2 0x563e455aed60 in s2n_realloc /codebuild/output/src1161013577/src/github.com/boquan-fang/s2n-tls/utils/s2n_mem.c:218:9 #3 0x563e455ae4e8 in s2n_alloc /codebuild/output/src1161013577/src/github.com/boquan-fang/s2n-tls/utils/s2n_mem.c:181:5 #4 0x563e454d4be7 in s2n_connection_new /codebuild/output/src1161013577/src/github.com/boquan-fang/s2n-tls/tls/s2n_connection.c:72:5 #5 0x563e454815a8 in main /codebuild/output/src1161013577/src/github.com/boquan-fang/s2n-tls/tests/unit/s2n_record_size_test.c:75:39 #6 0x7ff4c9c23d8f in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16

Link: https://us-west-2.console.aws.amazon.com/codesuite/codebuild/024603541914/projects/AddressSanitizer/batch/AddressSanitizer%3Ae38cdb87-26a6-4081-888a-faa0aed81dd1?region=us-west-2

• It also captures all previous UBSAN violations.
• Therefore, it shows that ASAN and UBSAN check can work together.
  By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[lrstewart]

Can you include links to the failed codebuild jobs in your testing section?