[issue 471] Enhance Makefile to allow catalog source image on MacBook M2

[jianrongzhang89]

Description of the change:
Currently the Makefile does not support cross-platform build for the catalog source. As a result, if I build the image on MacBook with M2 chip, the catalog source will fail as the opm included in the image is not in the linux/amd64 architecture.

The Makefile is enhanced to build the catalog source image in linux/amd64 architecture on a machine that has a different architecture.

Motivation for the change:
Cross-platform build is not supported currently for catalog source.

Checklist

• Add or Modify a unit test for your change
• Have you verified that tall the tests are passing?

How to backport a pull request to a different branch?

In order to automatically create a backporting pull request please add one or more labels having the following format backport-<branch-name>, where <branch-name> is the name of the branch where the pull request must be backported to (e.g., backport-7.67.x to backport the original PR to the 7.67.x branch).

NOTE: backporting is an action aiming to move a change (usually a commit) from a branch (usually the main one) to another one, which is generally referring to a still maintained release branch. Keeping it simple: it is about to move a specific change or a set of them from one branch to another.

Once the original pull request is successfully merged, the automated action will create one backporting pull request per each label (with the previous format) that has been added.

If something goes wrong, the author will be notified and at this point a manual backporting is needed.

NOTE: this automated backporting is triggered whenever a pull request on main branch is labeled or closed, but both conditions must be satisfied to get the new PR created.