Fix incorrect quotation symbol. am: d389c9ec6e

Original change: https://android-review.googlesource.com/c/platform/external/kotlinx.serialization/+/3012873

Change-Id: Ie8fcdb019b29092dae272e81ff17b5f2fccbfd82
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>