Flag for skipping semver compatibility checks

[mattyg]

Sometimes due to an upstream crate issue, the current package no longer builds. We still need to be able to release an updated version. Currently the release util will fail if it cannot build the current version.

We should add the ability to skip the build of the current version with a cli flag.

AC:

• Add a flag to bypass the semver compatibility check, so that the current version is not built.
• Expose this as an input in the github action prepare-release

[mattyg]

I ran into another case where this is needed. cargo-semver-checks does not catch every semver violation. If you try to do a semver version bump, and cargo-semver-checks doesn't recognize it as such, then it will fail and abort the prepare-release workflow.