Gracefully handle expired hosts

[rarkins]

What would you like Renovate to be able to do?

Gracefully handle this type of error:

{
    "level": 40,
    "repository": "pac4j/play-pac4j",
    "failedUrl": "https://scala-tools.org/repo-releases/com/typesafe/play/play_2.12/maven-metadata.xml",
    "err": {
        "name": "RequestError",
        "code": "ERR_TLS_CERT_ALTNAME_INVALID",
        "hostname": "scala-tools.org",
        "method": "GET",
        "path": "/repo-releases/com/typesafe/play/play_2.12/maven-metadata.xml",
        "protocol": "https:",
        "url": "https://scala-tools.org/repo-releases/com/typesafe/play/play_2.12/maven-metadata.xml",
        "gotOptions": {
            "path": "/repo-releases/com/typesafe/play/play_2.12/maven-metadata.xml",
            "protocol": "https:",
            "hostname": "scala-tools.org",
            "hash": "",
            "search": "",
            "pathname": "/repo-releases/com/typesafe/play/play_2.12/maven-metadata.xml",
            "href": "https://scala-tools.org/repo-releases/com/typesafe/play/play_2.12/maven-metadata.xml",
            "headers": {
                "user-agent": "Renovate Bot (GitHub App 2740)",
                "accept-encoding": "gzip, deflate"
            },
            "hooks": {
                "beforeError": [],
                "init": [],
                "beforeRequest": [],
                "beforeRedirect": [
                    null
                ],
                "beforeRetry": [],
                "afterResponse": []
            },
            "retry": {
                "methods": {},
                "statusCodes": {},
                "errorCodes": {}
            },
            "decompress": true,
            "throwHttpErrors": true,
            "followRedirect": true,
            "stream": false,
            "form": false,
            "json": false,
            "cache": false,
            "useElectronNet": false,
            "hostType": "maven",
            "method": "GET"
        },
        "message": "Hostname/IP does not match certificate's altnames: Host: scala-tools.org. is not in the cert's altnames: DNS:*.user.fm, DNS:user.fm",
        "stack": "RequestError: Hostname/IP does not match certificate's altnames: Host: scala-tools.org. is not in the cert's altnames: DNS:*.user.fm, DNS:user.fm\n    at ClientRequest.request.once.error (/home/ubuntu/renovateapp/node_modules/got/source/request-as-event-emitter.js:178:14)\n    at Object.onceWrapper (events.js:286:20)\n    at ClientRequest.emit (events.js:203:15)\n    at ClientRequest.EventEmitter.emit (domain.js:448:20)\n    at ClientRequest.origin.emit.args (/home/ubuntu/renovateapp/node_modules/@szmarczak/http-timer/source/index.js:37:11)\n    at TLSSocket.socketErrorListener (_http_client.js:392:9)\n    at TLSSocket.emit (events.js:198:13)\n    at TLSSocket.EventEmitter.emit (domain.js:448:20)\n    at emitErrorNT (internal/streams/destroy.js:91:8)\n    at emitErrorAndCloseNT (internal/streams/destroy.js:59:3)"
    },
    "msg": "Unknown error",
    "time": "2020-02-12T08:49:37.500Z"

Describe the solution you'd like

Instead of "Unknown error" it should have a known type so that it can be ignored. In this case the host is defunct.

[renovate-release]

🎉 This issue has been resolved in version 19.131.4 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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