fix(ci): use jsonpath to get the volume name for integration test (#709)
fix(ci): use jsonpath to get the volume name for integration test (#709)

**What this PR does / why we need it**:
Due to change in PV name (pvc-UUID), needs to read the volume name using CASType,
which is getting passed to mayactl operations.

Signed-off-by: Ashish Ranjan <8999fd84b5de08761b937d73f9430f62bafc5f70@gmail.com>
openebs/maya,AmitKumarDas/maya,AmitKumarDas/maya,openebs/maya,prateekpandey14/maya,prateekpandey14/maya,openebs/maya