fix: typos in core.go (recieved -> received, succesfully -> successfully)

[SAY-5]

What this PR does / why we need it:
Fixes typos in pkg/aws/core.go: 'recieved' -> 'received' and 'succesfully' -> 'successfully'.

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:
String/comment-only change, no functional impact.

Release note:

NONE

[gardener-prow]

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[CLAassistant]

All committers have signed the CLA.

[SAY-5]

Rewrote the commit author email to say.apm35@gmail.com so the CLA bot can match it to my GitHub account.