ExpiringValue caches failures

[kernwig]

When the factory function for ExpiringValue throws (aka: returns a rejected Promise), that failure is cached.

I want to not cache failures and instead retry on the next get() call.

[kernwig]

Released in expiring-value@4.0.0

[kernwig]

Reopening:

When used elsewhere and testing case of factory returning an thrown error, an unhandled exception failure causes the test to fail. This can be reproduced in the library's unit tests simply by removing NODE_OPTIONS=--unhandled-rejections=none from the jest script:

 RUNS  lib/expiring-value.test.ts
node:internal/process/promises:288
            triggerUncaughtException(err, true /* fromPromise */);
            ^

Error: 
    at Object.<anonymous> (/Users/adamfanello/dev/onica/oss/sailplane/expiring-value/lib/expiring-value.test.ts:69:63)
    at Promise.then.completed (/Users/adamfanello/dev/onica/oss/sailplane/expiring-value/node_modules/jest-circus/build/utils.js:298:28)
    at new Promise (<anonymous>)
    at callAsyncCircusFn (/Users/adamfanello/dev/onica/oss/sailplane/expiring-value/node_modules/jest-circus/build/utils.js:231:10)
    at _callCircusTest (/Users/adamfanello/dev/onica/oss/sailplane/expiring-value/node_modules/jest-circus/build/run.js:316:40)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at _runTest (/Users/adamfanello/dev/onica/oss/sailplane/expiring-value/node_modules/jest-circus/build/run.js:252:3)
    at _runTestsForDescribeBlock (/Users/adamfanello/dev/onica/oss/sailplane/expiring-value/node_modules/jest-circus/build/run.js:126:9)
    at _runTestsForDescribeBlock (/Users/adamfanello/dev/onica/oss/sailplane/expiring-value/node_modules/jest-circus/build/run.js:121:9)
    at run (/Users/adamfanello/dev/onica/oss/sailplane/expiring-value/node_modules/jest-circus/build/run.js:71:3)
    at runAndTransformResultsToJestFormat (/Users/adamfanello/dev/onica/oss/sailplane/expiring-value/node_modules/jest-circus/build/legacy-code-todo-rewrite/jestAdapterInit.js:122:21)
    at jestAdapter (/Users/adamfanello/dev/onica/oss/sailplane/expiring-value/node_modules/jest-circus/build/legacy-code-todo-rewrite/jestAdapter.js:79:19)
    at runTestInternal (/Users/adamfanello/dev/onica/oss/sailplane/expiring-value/node_modules/jest-runner/build/runTest.js:367:16)
    at runTest (/Users/adamfanello/dev/onica/oss/sailplane/expiring-value/node_modules/jest-runner/build/runTest.js:444:34)