fix(deps): update yargs to 18

[bcoe]

Now that we've bumped the major due to a recent CVE, might as well update yargs to version with less build steps.

[coderaiser]

Would be great also to update yargs-parser

https://github.com/yargs/yargs-parser/releases/tag/yargs-parser-v22.0.0

[bricss]

Perhaps yargs can be replaced with the native util.parseArgs([config]), which has been stable in Node since v20 🤓

[coderaiser]

Looks like this can be uncommented:

https://github.com/bcoe/c8/blob/main/lib/parse-args.js#L176-L187
https://github.com/bcoe/c8/blob/main/lib/commands/report.js#L13

[JoernBerkefeld]

to support that, yargs 17 has an issue with node 25.7 (also see #581) which is fixed in yargs 18. do please update that dependecy

file:///home/runner/work/SFMC-SDK/SFMC-SDK/node_modules/yargs/yargs:3
const {applyExtends, cjsPlatformShim, Parser, Yargs, processArgv} = require('./build/index.cjs')
^

ReferenceError: require is not defined in ES module scope, you can use import instead
at file:///home/runner/work/SFMC-SDK/SFMC-SDK/node_modules/yargs/yargs:3:69
at ModuleJobSync.runSync (node:internal/modules/esm/module_job:534:37)
at ModuleLoader.importSyncForRequire (node:internal/modules/esm/loader:366:47)
at loadESMFromCJS (node:internal/modules/cjs/loader:1628:24)
at Module._compile (node:internal/modules/cjs/loader:1793:5)
at Object..js (node:internal/modules/cjs/loader:1951:10)
at Module.load (node:internal/modules/cjs/loader:1532:32)
at Module._load (node:internal/modules/cjs/loader:1334:12)
at wrapModuleLoad (node:internal/modules/cjs/loader:255:19)
at Module.require (node:internal/modules/cjs/loader:1555:12)

Node.js v25.7.0
Error: Process completed with exit code 1.