meta: fix a typo in the flaky test template

"occasionally" was spelled incorrectly.

PR-URL: #33677
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>

.github/ISSUE_TEMPLATE/4-report-a-flaky-test.md

@@ -8,9 +8,9 @@ labels: "CI / flaky test"
 <!--
 Thank you for reporting a flaky test.
 
-Flaky tests are tests that fail occaisonally in Node.js CI, but not consistently
-enough to block PRs from landing, or that are failing in CI jobs or test modes
-that are not run for every PR.
+Flaky tests are tests that fail occasionally in the Node.js CI, but not
+consistently enough to block PRs from landing, or that are failing in CI jobs or
+test modes that are not run for every PR.
 
 Please fill in as much of the template below as you're able.