Fixes event patching - unquote event count

[yue9944882]

Fixes: #1536

cc @chris-chambers @brendandburns

[brendandburns]

/lgtm
/approve

@yue9944882 is this worth cherry-picking?

[k8s-ci-robot]

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[chris-chambers]

Does this really completely fix it? In my tests, Configuration.getDefaultApiClient().getJSON().serialize(now) did not produce a valid date string. It produced a JSON object representation that Kubernetes rejected. I had to switch to DateTimeFormatter.ISO_OFFSET_DATE_TIME.format(now) to get a working event update. (There may be a more appropriate date formatting call, but that one worked for me.)

[yue9944882]

@chris-chambers ah true, sry for being dump 🙁 really shouldn't have updated the timestamp serialization. i opened #1569 to fix it.