[PR] fix(ci): verify LuaRocks tarball checksum before install [apisix]

["shreemaan-abhishek (via GitHub)" <gi...@apache.org>]

shreemaan-abhishek opened a new pull request, #13526:
URL: https://github.com/apache/apisix/pull/13526

   ### Description
   
   `utils/linux-install-luarocks.sh` downloads the LuaRocks source tarball with `wget` and immediately extracts and builds it without any integrity verification. This means a corrupted download or a compromised/MITM'd fetch would be built and installed silently.
   
   This change hardens the install step against supply-chain tampering by pinning the expected SHA256 of the LuaRocks tarball and verifying it with `sha256sum -c -` before extraction. If the checksum does not match, the script fails fast instead of building untrusted code.
   
   **How:**
   - Pin `LUAROCKS_SHA256` for the already-pinned `LUAROCKS_VER=3.12.0`.
   - Download to an explicit output path, then verify the checksum, then extract.
   
   The expected hash `745e3c5df2f955ecaf60ba1361cfc224564ef7ec210e9a784a3858ae853e9f7c` was confirmed by downloading `https://github.com/luarocks/luarocks/archive/v3.12.0.tar.gz` and computing its SHA256.
   
   ### Checklist
   
   - [x] I have explained the need for this PR and the problem it solves
   - [x] I have explained the changes or the new features added to this PR
   - [ ] I have added tests corresponding to this change
   - [x] I have updated the documentation to reflect this change
   - [x] I have verified that this change is backward compatible (If not, please discuss on the [APISIX mailing list](https://github.com/apache/apisix/blob/master/CONTRIBUTING.md#submit-a-proposal) first)


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Re: [PR] fix(ci): verify LuaRocks tarball checksum before install [apisix]

["shreemaan-abhishek (via GitHub)" <gi...@apache.org>]

shreemaan-abhishek merged PR #13526:
URL: https://github.com/apache/apisix/pull/13526


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