Effect compatibility issue with Node 14

[bjmvercelli]

Describe the bug
Support for Node 14 broke with #553 since Effect uses nullish coalescing assignment operator (??=), which is available for Node >= 15 (reference: https://node.green/#ES2021-features-Logical-Assignment-----basic-support)

Versions (please complete the following information):

• OS: Linux
• Serverless Framework Version:3.39.0
• Plugin Version: 7.2.3

[floydspace]

yeah, it is expected, we dropped the v14 support, it's time to move on,
I can look at it if I can quickly implement transpilation to node 14,
but for now you can use older plugin version v1.53.0

[bjmvercelli]

yeah, it is expected, we dropped the v14 support, it's time to move on, I can look at it if I can quickly implement transpilation to node 14, but for now you can use older plugin version v1.53.0

Agree 100%, its time to move on haha.
I don't think that's necessary to implement transpilation to Node 14 but we could update supported runtimes on README, what you think?

[floydspace]

yes makes sense

[bjmvercelli]

Appreciate the great work. Let me know if you want me to open PR ;)

[floydspace]

@bjmvercelli just fyi added it here