chore: Drop support for node v10 and v12

[Meir017]

Description:

BREAKING CHANGE:

• dropping support for node v10
• dropping support for node v12

Related issue (if exists):

• closes #5348

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[kwonoj]

This is technically considered as breaking change, which should aim v2 major breaking for @swc/core if that's the case.

[Meir017]

@kwonoj do I need to make additional changes for v2?

[kwonoj]

We do not have release branches for v2 yet. In short, this PR cannot go to current main branch.