Bump build from 0.3.1 to 0.3.1.post1 in /docker/build_scripts (#1041)

Bumps [build](https://github.com/pypa/build) from 0.3.1 to 0.3.1.post1.
- [Release notes](https://github.com/pypa/build/releases)
- [Changelog](https://github.com/pypa/build/blob/main/CHANGELOG.rst)
- [Commits](pypa/build@0.3.1...0.3.1.post1)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

docker/build_scripts/requirements.txt

@@ -18,9 +18,9 @@ setuptools==50.3.2 ; python_version=='3.5' \
 setuptools==54.1.1; python_version>='3.6' \
      --hash=sha256:75c5c4479f4961f1ffdb597c98aa4e4077e6813685025e8bdebf7598aa84e859 \
      --hash=sha256:1ce82798848a978696465866bb3aaab356003c42d6143e1111fcf069ac838274
-build==0.3.1 \
-    --hash=sha256:db7a2b25c013f84583e06bbe1bb7ae6a784a199463032001995cb7d974813b26 \
-    --hash=sha256:439c1c1708a0292d251f2f76edcfb314b015bbc9a5e0d2bf49d9f4afcb2d4408
+build==0.3.1.post1 \
+    --hash=sha256:88bc8ff6cb948247bebd5b3bf6b8b71d10fd93bce848f9d2fd9b28cbdd40ae8b \
+    --hash=sha256:85123bf327404e68142b1eb2a8298b052e984ad5b12738549688371e6337c73a
 packaging==20.9 \
     --hash=sha256:5b327ac1320dc863dca72f4514ecc086f31186744b84a230374cc1fd776feae5 \
     --hash=sha256:67714da7f7bc052e064859c05c595155bd1ee9f69f76557e21f051443c20947a