Fix unexpected bye by skipping emoji

[sanak]

Fixes #61.

Changes proposed in this pull request:

• Add failed test case with emoji
  • commit: 91e9d10
• Remove emoji when finding command
  • commit: 7d37d50
  • Use the following Stack Overflow article's 1st answer's RegExp patter.
    • javascript - Regex to find and replace emoji names within colons - Stack Overflow
• Modify replaceAll to replace for Node.js < 15 env
  • commit: ae3a8fc
  • Node.jsで”replaceAll is not a function”エラー - プログラミングの「YUIPRO」

@Georepublic/maintainer

[sanak]

@halsk I confirmed this on dev environment, so could you check this ?
(Note that I changed VERSION directly on Google Apps Script editor.)