This commit re-pins the workflow version for the release template
reference. It uses an assumed 2.0 which is what we'd need to bump it
to for changing the parameters.

Removes requiring version at runtime with require: 3615f15#diff-258035e5968f6bf645400d417f310218d7d9a9a10606a3c34e7f55db193f58f3R3

Instead we're using the rollup replace plugin to read the version at build time and replace __VERSION__ placeholder with the actual version number.

As a result other packages depending on this one don't need to understand require calls and also we're not exposing the whole package.json file at runtime.

To verify my claim above you can build the package and check the build directory after this change vs before this change.