[6.2] Update the runtime version to 6.2

[shahmishal]

• Explanation: Runtime version is set to 6.1.0 in release/6.2 branch
• Scope: Update the runtime version to 6.2.0
• Issues: The runtime version we not updated
• Original PRs: Updating main branch with 6.3.0
• Risk: Low
• Testing: CI Testing
• Reviewers: @compnerd @etcwilde

[compnerd]

https://github.com/swiftlang/swift/blob/release/6.2/Runtimes/Overlay/CMakeLists.txt#L23
https://github.com/swiftlang/swift/blob/release/6.2/Runtimes/Supplemental/StringProcessing/CMakeLists.txt#L13

Would be good to sync as well.

[shahmishal]

We need to move this in central location, otherwise we are going to forget to update these files in the future.

[compnerd]

Agreed; we should figure out how to do that on main. There is the build number handling that would also benefit from the centralisation.

[compnerd]

Lets get this in even without the full fix, I think that this is somewhat critical for this release.

[shahmishal]

@swift-ci test

[compnerd]

Thank you!