Update pin for boost

[regro-cf-autotick-bot]

This PR has been triggered in an effort to update the pin for boost. The current pinned version is 1.74.0, the latest available version is 1.78.0 and the max pin pattern is x.x.x. This migration will impact 89 feedstocks.

Checklist:

• The new version is a stable supported pin.
• I checked that the ABI changed from 1.74.0 to 1.78.0.

**Please note that if you close this PR we presume that the new pin has been rejected.

@conda-forge-admin please ping boost
This PR was generated by https://github.com/regro/autotick-bot/actions/runs/2151003214, please use this URL for debugging

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-webservice.

I was asked to ping @conda-forge/boost and so here I am doing that.

[conda-forge-linter]

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.

[izahn]

The latest rstudio release needs boost-cpp >=1.78 (see conda-forge/rstudio-feedstock#6 ). Would that be covered here or do we need a separate (manual?) migration for boost-cpp?

[beckermr]

This migrator would get to it eventually.

[izahn]

OK great, is there anything I can do to help with this migration? I see there was some discussion in #1462 and that was never merged.

[izahn]

Can this PR be merged? If not please let me know what is blocking it, I'm happy to help.

[jakirkham]

Discussion is occurring in PR ( #1462 ). Let's keep the discussion in one place so it is easier to follow