Add a write guard in tls13 record aead test
Add a write guard in tls13 record aead test

colmmacc/s2n,awslabs/s2n,wcs1only/s2n,PKRoma/s2n,colmmacc/s2n,PKRoma/s2n,wcs1only/s2n,alexeblee/s2n,colmmacc/s2n,alexeblee/s2n,alexeblee/s2n,colmmacc/s2n,wcs1only/s2n,wcs1only/s2n,wcs1only/s2n,awslabs/s2n,wcs1only/s2n,alexeblee/s2n,awslabs/s2n,wcs1only/s2n,wcs1only/s2n,awslabs/s2n,PKRoma/s2n,alexeblee/s2n,PKRoma/s2n,PKRoma/s2n,colmmacc/s2n,awslabs/s2n,awslabs/s2n,PKRoma/s2n,colmmacc/s2n,PKRoma/s2n,alexeblee/s2n,PKRoma/s2n