Fix C++ arrow build flag forwarding (#4921)

Proper use of some parameters:
* ARROW_ASAN - shall be used instead of RERUN_USE_ASAN because otherwise
the property isn't set in MSVC configuration
* ARROW_CXXFLAGS - there was a typo with unnecessary D in the beginning

### What

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
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* [ ] I've included a screenshot or gif (if applicable)
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* Using newly built examples:
[app.rerun.io](https://app.rerun.io/pr/4921/index.html)
* Using examples from latest `main` build:
[app.rerun.io](https://app.rerun.io/pr/4921/index.html?manifest_url=https://app.rerun.io/version/main/examples_manifest.json)
* Using full set of examples from `nightly` build:
[app.rerun.io](https://app.rerun.io/pr/4921/index.html?manifest_url=https://app.rerun.io/version/nightly/examples_manifest.json)
* [ ] The PR title and labels are set such as to maximize their
usefulness for the next release's CHANGELOG

- [PR Build Summary](https://build.rerun.io/pr/4921)
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rerun_cpp/download_and_build_arrow.cmake

@@ -83,11 +83,11 @@ function(download_and_build_arrow)
         -DARROW_BOOST_USE_SHARED=OFF
         -DARROW_BUILD_SHARED=${ARROW_BUILD_SHARED}
         -DARROW_BUILD_STATIC=${ARROW_BUILD_STATIC}
-        -DARROW_CXXFLAGS=${DARROW_CXXFLAGS}
+        -DARROW_CXXFLAGS=${ARROW_CXXFLAGS}
         -DARROW_IPC=OFF
         -DARROW_JEMALLOC=OFF # We encountered some build issues with jemalloc, use mimalloc instead.
         -DARROW_MIMALLOC=ON
-        -DARROW_USE_ASAN=${RERUN_USE_ASAN}
+        -DARROW_USE_ASAN=${ARROW_ASAN}
         -DARROW_USE_TSAN=OFF
         -DARROW_USE_UBSAN=OFF
         -DBOOST_SOURCE=BUNDLED