Drop libcurl 7 variants

[jdblischak]

Checklist

• Used a personal fork of the feedstock to propose changes
• Bumped the build number (if the version is unchanged)
• Re-rendered with the latest conda-smithy (Use the phrase @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

---

• Follow-up to Migrate for libgoogle-cloud 2.17; drop OpenSSL 1.1.1 #238
• Closes Drop libcurl 7 builds #240
• Will also fix Nighly feedstock build failed TileDB-Inc/conda-forge-nightly-controller#58

I removed our dependence on libcurl 7 in our TileDB Cloud environments by building a custom pysam binary for python 3.9, openssl 3, and libcurl 8 (TileDB-Inc/pysam-feedstock#2)

I purposefully didn't bump the build number. I don't think it's necessary to upload new binaries. Yes, the pins for aws_crt_cpp and aws_sdk_cpp were added, but these are the latest versions anyways and were already being installed.

https://anaconda.org/conda-forge/aws-sdk-cpp/files?version=1.11.267
https://anaconda.org/conda-forge/aws-crt-cpp/files?version=0.26.2

Confirming in the latest build log:

    aws-crt-cpp:                   0.26.2-hce0b5c7_6           conda-forge
    aws-sdk-cpp:                   1.11.267-h5606698_1         conda-forge

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[h-vetinari]

Thank you for getting to the bottom of this! 💪