[Submodule update] sonic-restapi

commit 5f7cb77230fceb1b7fd30c57a70d0cd05cd6dd95 (HEAD -> 201911, origin/201911)
Author: Sumukha Tumkur Vani <[email protected]>
Date:   Wed Jul 27 16:51:38 2022 -0700

    Use 201911/stretch dependencies for build (#118)

commit e3809523050df75ec18bf31a5dc3a2e595d58a14
Author: Sumukha Tumkur Vani <[email protected]>
Date:   Wed Jul 27 15:17:12 2022 -0700

    Change response message for conflicting VNI (#117)

    Ref: sonic-net/sonic-restapi#99

Signed-off-by: Abhishek Dosi <[email protected]>