[FAB-5212][node-sdk]Fix tls_cacerts path in e2e test
[FAB-5212][node-sdk]Fix tls_cacerts path in e2e test

File path of "tls_cacerts" is wrong
in test/integration/e2e/config.json.
The valuable of "tls_cacerts" is pointing the path of "cacerts".

This patch fixes the path to acctual tlscacerts directory.

Change-Id: Iac020309b7ec09f29eeb29ee85b1619a77be460e
Signed-off-by: Yuki Kondo <77561f1dfca6e25a5bb8ad37bc6f33030d4f6882@hal.hitachi.com>

adityachap/fabric-sdk-node,adityachap/fabric-sdk-node