fix: incorrect handling of test results that never ran properly

[alexplischke]

Description

A test may never have run correctly to completion—worker crashed—and therefore never had any results. The reporter would fail multiple times in this case:

1. stack is not a method on Error.

Error in reporter TypeError: e.stack is not a function
    at SauceReporter.onEnd (/Users/alexplischke/devel/sauce-playwright-reporter/lib/reporter.js:155:75)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at ReporterV2Wrapper.onEnd (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/reporters/reporterV2.js:91:12)
    at wrapAsync (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/reporters/multiplexer.js:79:12)
    at Multiplexer.onEnd (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/reporters/multiplexer.js:51:25)
    at InternalReporter.onEnd (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/reporters/internalReporter.js:69:12)
    at Runner.runAllTests (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/runner/runner.js:78:28)
    at runTests (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/program.js:207:85)
    at t.<anonymous> (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/program.js:54:7)

2. duration could not be calculated correctly because the code was expecting test results:

failed to send report to insights,  TypeError: Cannot read properties of undefined (reading 'duration')
    at forEach (/Users/alexplischke/devel/sauce-playwright-reporter/lib/reporter.js:207:40)
    at Array.forEach (<anonymous>)
    at SauceReporter.getDuration (/Users/alexplischke/devel/sauce-playwright-reporter/lib/reporter.js:205:25)
    at SauceReporter.reportTestRun (/Users/alexplischke/devel/sauce-playwright-reporter/lib/reporter.js:177:28)
    at SauceReporter.onEnd (/Users/alexplischke/devel/sauce-playwright-reporter/lib/reporter.js:152:32)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at ReporterV2Wrapper.onEnd (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/reporters/reporterV2.js:91:12)
    at wrapAsync (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/reporters/multiplexer.js:79:12)
    at Multiplexer.onEnd (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/reporters/multiplexer.js:51:25)
    at InternalReporter.onEnd (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/reporters/internalReporter.js:69:12)
    at Runner.runAllTests (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/runner/runner.js:78:28)
    at runTests (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/program.js:207:85)
    at t.<anonymous> (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/program.js:54:7)

3. Same as 2. but for error:

failed to send report to insights:  TypeError: Cannot read properties of undefined (reading 'error')
    at forEach (/Users/alexplischke/devel/sauce-playwright-reporter/lib/reporter.js:222:32)
    at Array.forEach (<anonymous>)
    at SauceReporter.findErrors (/Users/alexplischke/devel/sauce-playwright-reporter/lib/reporter.js:220:25)
    at SauceReporter.reportTestRun (/Users/alexplischke/devel/sauce-playwright-reporter/lib/reporter.js:182:26)
    at SauceReporter.onEnd (/Users/alexplischke/devel/sauce-playwright-reporter/lib/reporter.js:152:32)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at ReporterV2Wrapper.onEnd (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/reporters/reporterV2.js:91:12)
    at wrapAsync (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/reporters/multiplexer.js:79:12)
    at Multiplexer.onEnd (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/reporters/multiplexer.js:51:25)
    at InternalReporter.onEnd (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/reporters/internalReporter.js:69:12)
    at Runner.runAllTests (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/runner/runner.js:78:28)
    at runTests (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/program.js:207:85)
    at t.<anonymous> (/Users/alexplischke/devel/saucectl-playwright-example/node_modules/playwright/lib/program.js:54:7)