fix socat integration CI (#1833)

socat started cutting off the tests prematurely if the test hadn't
finished yet with these commits:
* 4d03b37da1226f5d76d1503487d7cd8b90c4d80
* b5b9ee0031eb0f38a71b44a45723d728265ee1bd

A lot of tests are related to specific warnings that socat emits based
on the openssl version not supporting certain things. My suspicion is
that the additional time when writing to the logs breaks the 3
millisecond threshold and socat determines that we've failed the test.
Extending this time threshold to 50 milliseconds gets past things.
  
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tests/ci/integration/run_socat_integration.sh

@@ -24,6 +24,10 @@ function build_and_test_socat() {
   autoconf
   ./configure --enable-openssl-base="$AWS_LC_INSTALL_FOLDER"
   make -j "$NUM_CPU_THREADS"
+  # See: t/V1497389456.
+  # socat decreased the test wait time to 3 milliseconds, which causes failures when additional warnings/logs are written.
+  # Extending the wait time to 50 milliseconds is just right for us.
+  sed -i 's/MILLIs=\$((3/MILLIs=\$((50/' ./test.sh
   # test 146 OPENSSLLISTENDSA: fails because AWS-LC doesn't support FFDH ciphersuites which are needed for DSA
   # test 216 UDP6MULTICAST_UNIDIR: known flaky test in socat with newer kernels
   # test 309 OPENSSLRENEG1: AWS-LC doesn't support renegotiation by default, it can be enabled by calling SSL_set_renegotiate_mode