Specify node version for fly.io deployment via wasp deploy fly deploy

2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] /app/node_modules/sharp/lib/sharp.js:113
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] throw new Error(help.join('\n'));
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] ^
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] Error: Could not load the "sharp" module using the linuxmusl-x64 runtime
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] Possible solutions:
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] - Please upgrade Node.js:
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] Found 20.0.0
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] Requires ^18.17.0 || ^20.3.0 || >=21.0.0
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] - Consult the installation documentation:
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] See https://sharp.pixelplumbing.com/install
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] at Object.<anonymous> (/app/node_modules/sharp/lib/sharp.js:113:9)
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] at Module._compile (node:internal/modules/cjs/loader:1267:14)
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] at Module._extensions..js (node:internal/modules/cjs/loader:1321:10)
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] at Module.load (node:internal/modules/cjs/loader:1125:32)
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] at Module._load (node:internal/modules/cjs/loader:965:12)
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] at Module.require (node:internal/modules/cjs/loader:1149:19)
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] at require (node:internal/modules/helpers:121:18)
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] at Object.<anonymous> (/app/node_modules/sharp/lib/constructor.js:10:1)
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] at Module._compile (node:internal/modules/cjs/loader:1267:14)
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] at Module._extensions..js (node:internal/modules/cjs/loader:1321:10)
2025-05-09T01:22:20.563 app[48ed090ce42e78] sea [info] Node.js v20.0.0