Update QGIS stable branch to 3.34.0 Release candidate

[SrNetoChan]

Future LTR branch in February

Checklist

• [x] Used a personal fork of the feedstock to propose changes
• [ ] Bumped the build number (if the version is unchanged)
• [x] Reset the build number to 0 (if the version changed)
• [ ] Re-rendered with the latest conda-smithy (Use the phrase code>@<space/conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• [x] Ensured the license file is being packaged.

[conda-forge-webservices[bot]]

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.

[SrNetoChan]

@conda-forge-admin, please rerender

[gillins]

@h-vetinari any ideas on why we are getting failures with protobuf on osx-arm64 now? Seems to be picking up the wrong binaries...

[h-vetinari]

@h-vetinari any ideas on why we are getting failures with protobuf on osx-arm64 now? Seems to be picking up the wrong binaries...

Rather than deleting the "wrong" protoc https://github.com/conda-forge/qgis-feedstock/blob/100a818dd5e81807c1f42f40e215e23c597334f0/recipe/build.sh#L46-L47

you should be setting -DProtobuf_PROTOC_EXECUTABLE=$BUILD_PREFIX/bin/protoc

[h-vetinari]

If you still run into troubles even so, you might need to do something like https://github.com/conda-forge/opencv-feedstock/commit/bbe46049a19e30c96cadbdf07affcaf0b8c6230d, c.f. also https://github.com/protocolbuffers/protobuf/issues/14576

[gillins]

Done in #380

[gillins]

Thanks for the tips @h-vetinari ! Got it running in the end.