chore: change lastindexOf to endsWith

[xtx1130]

Optimized from last pr: #3789

Checklist

• run npm run test and npm run benchmark
• tests and/or benchmarks are included
• commit message and code follows the Developer's Certification of Origin
  and the Code of conduct

[xtx1130]

benchmark for fastify:

this branch:

master:

---

benchmark for code:

const { version } = require('process')
const max = 100000000


function useEndsWith () {
  let value = '1234567890;'
  if(value.endsWith(';'))
    return true
}
function useLastIndexOf () {
  let value = '1234567890;'
  if(value.lastIndexOf(';') === value.length-1)
    return true
}

console.log(version)

console.time('useEndsWith')
for (let i = 0; i < max; i++) {
  useEndsWith()
}
console.timeEnd('useEndsWith')

console.time('useLastIndexOf')
for (let i = 0; i < max; i++) {
  useLastIndexOf()
}
console.timeEnd('useLastIndexOf')

output:

$ v14.19.0
$ useEndsWith: 1.232s
$ useLastIndexOf: 2.477s

[climba03003]

LGTM.

[mcollina]

lgtm! Amazing

[github-actions]

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