Fix memory leak due to a misuse of AWS SDK

[jepett0]

Backport:

• Restore the commit fixing a memory leak in AWS SDK #8823
• Conditionally compile the code that uses AWS to pass windows build #8966

[github-actions]

⚪ 2024-09-26 16:32:09 UTC Pre-commit check for 8785ddc has started.
⚪ 2024-09-26 16:34:47 UTC Build linux-x86_64-release-asan is running...
🟢 2024-09-26 17:05:01 UTC Build successful.
⚪ 2024-09-26 17:09:34 UTC Tests are running...
🔴 2024-09-26 19:15:13 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
11269	11188	0	8	27	46

🟢 2024-09-26 19:15:55 UTC ydbd size 5.5 GiB changed* by +2.7 KiB, which is < 100.0 KiB vs stable-24-3: OK

ydbd size dash	stable-24-3: 13c2d99	merge: 8785ddc	diff	diff %
ydbd size	5 958 953 984 Bytes	5 958 956 760 Bytes	+2.7 KiB	+0.000%
ydbd stripped size	1 491 760 896 Bytes	1 491 761 696 Bytes	+800 Bytes	+0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

⚪ 2024-09-26 16:32:42 UTC Pre-commit check for 8785ddc has started.
⚪ 2024-09-26 16:35:21 UTC Build linux-x86_64-release-clang14 is running...
🟢 2024-09-26 17:17:36 UTC Build successful.

[github-actions]

⚪ 2024-09-26 16:38:20 UTC Pre-commit check for 8785ddc has started.
⚪ 2024-09-26 16:40:58 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2024-09-26 17:28:50 UTC Build successful.
⚪ 2024-09-26 17:29:11 UTC Tests are running...
🔴 2024-09-26 18:54:07 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
15577	14230	0	5	1300	42

🔴 2024-09-26 18:54:57 UTC ydbd size 8.2 GiB changed* by +34.0 MiB, which is >= 2.0 MiB vs stable-24-3: Alert

ydbd size dash	stable-24-3: 6950c41	merge: 8785ddc	diff	diff %
ydbd size	8 764 768 880 Bytes	8 800 434 352 Bytes	+34.0 MiB	+0.407%
ydbd stripped size	479 114 440 Bytes	480 007 592 Bytes	+872.2 KiB	+0.186%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}