Release - 0.49.0

[calvincestari]

Diff

0.48.0...main.

Relevant changes:

• Removed dependency on Apollo CLI for schema download (Remove dependency on apollo CLI for fetching schema #1935)

Things to do in this PR

• Update the version in Configuration/Shared/Project-Version.xcconfig.
• Update CHANGELOG.md with all relevant changes since the prior version. Please include PR numbers and mention contributors for external PR submissions.
• Run the Documentation Generator as noted in api-reference.md to re-generate documentation from source for all included libraries.

Other things to do before a release - these need to become automated CI builds

• Validate that main builds with a test Swift Package Manager project.
• Validate that main builds with a test CocoaPods project.
• Validate that main builds with a test Carthage project (make sure to use --use-xcframeworks).

Things to do as part of releasing

• Add tag of format major.minor.patch to GitHub for SPM/Carthage.
• Create a release on GitHub with the new tag, using the latest CHANGELOG.md contents.
• Run pod trunk push Apollo.podspec to publish to CocoaPods. You will need write permissions for this, please contact one of the maintainers if you need access to do this.
• Announce the new version (Twitter, etc.)

Things to do after release

• Update to the new version of apollo-ios in the sample application.
• Update to the new version of apollo-ios in the codegen template.
• Make sure all playground pages still execute.

[designatednerd]

LGTM save the couple comments - no need for re-review once they're addressed

[designatednerd]

Guh, I wish we could convince the docs to just use the errorDescription as the documentation....

[calvincestari]

Announced on Twitter.