Fix some typos in comments and strings

Most of them were found and fixed by codespell.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Upstream-commit: 2eee613326fb59fd168849618d14a9054a40f9f5
Component: engine

components/engine/pkg/httputils/resumablerequestreader_test.go

@@ -96,7 +96,7 @@ type errorReaderCloser struct{}
 func (errorReaderCloser) Close() error { return nil }
 
 func (errorReaderCloser) Read(p []byte) (n int, err error) {
-	return 0, fmt.Errorf("A error occured")
+	return 0, fmt.Errorf("An error occurred")
 }
 
 // If a an unknown error is encountered, return 0, nil and log it