ci: fix roachtest ibm nightly

Recent PR [1] enabled metamorphic runs of FIPS
for all roachtest nightlies. The default uses
a low value (0.02) which can be overriden via
CI's FIPS_PROBABILITY; i.e., setting it to zero
disables metamorphic FIPS runs.

However, `FIPS_PROBABILITY` wasn't being injected
into the environment of the roachtest script. This
resulted in failure since roachtest refuses to run
without a FIPS binary. Currently, FIPS isn't supported
in ibm nightly, so this change fixes the env var
propagation and effectitvely disables FIPS.

[1] #139510

Epic: none
Release note: None

Author: srosenberg

build/teamcity/cockroach/nightlies/roachtest_nightly_ibm.sh

@@ -13,5 +13,5 @@ dir="$(dirname $(dirname $(dirname $(dirname "${0}"))))"
 source "$dir/teamcity-support.sh"  # For $root
 source "$dir/teamcity-bazel-support.sh"  # For run_bazel
 
-BAZEL_SUPPORT_EXTRA_DOCKER_ARGS="-e LITERAL_ARTIFACTS_DIR=$root/artifacts -e IBM_APIKEY -e BUILD_VCS_NUMBER -e CLOUD -e COCKROACH_DEV_LICENSE -e TESTS -e COUNT -e GITHUB_API_TOKEN -e GITHUB_ORG -e GITHUB_REPO -e GOOGLE_EPHEMERAL_CREDENTIALS -e SLACK_TOKEN -e TC_BUILDTYPE_ID -e TC_BUILD_BRANCH -e TC_BUILD_ID -e TC_SERVER_URL -e SELECT_PROBABILITY -e COCKROACH_RANDOM_SEED -e ROACHTEST_ASSERTIONS_ENABLED_SEED -e ROACHTEST_FORCE_RUN_INVALID_RELEASE_BRANCH -e CLEAR_CLUSTER_CACHE -e ARM_PROBABILITY -e USE_SPOT -e SELECTIVE_TESTS -e SNOWFLAKE_USER -e SNOWFLAKE_PVT_KEY -e SIDE_EYE_API_TOKEN -e COCKROACH_EA_PROBABILITY -e EXPORT_OPENMETRICS -e ROACHPERF_OPENMETRICS_CREDENTIALS -e MVT_UPGRADE_PATH -e MVT_DEPLOYMENT_MODE -e EXTRA_ROACHTEST_ARGS" \
+BAZEL_SUPPORT_EXTRA_DOCKER_ARGS="-e LITERAL_ARTIFACTS_DIR=$root/artifacts -e IBM_APIKEY -e BUILD_VCS_NUMBER -e CLOUD -e COCKROACH_DEV_LICENSE -e TESTS -e COUNT -e GITHUB_API_TOKEN -e GITHUB_ORG -e GITHUB_REPO -e GOOGLE_EPHEMERAL_CREDENTIALS -e SLACK_TOKEN -e TC_BUILDTYPE_ID -e TC_BUILD_BRANCH -e TC_BUILD_ID -e TC_SERVER_URL -e SELECT_PROBABILITY -e COCKROACH_RANDOM_SEED -e ROACHTEST_ASSERTIONS_ENABLED_SEED -e ROACHTEST_FORCE_RUN_INVALID_RELEASE_BRANCH -e CLEAR_CLUSTER_CACHE -e ARM_PROBABILITY -e FIPS_PROBABILITY -e USE_SPOT -e SELECTIVE_TESTS -e SNOWFLAKE_USER -e SNOWFLAKE_PVT_KEY -e COCKROACH_EA_PROBABILITY -e EXPORT_OPENMETRICS -e ROACHPERF_OPENMETRICS_CREDENTIALS -e MVT_UPGRADE_PATH -e MVT_DEPLOYMENT_MODE -e EXTRA_ROACHTEST_ARGS" \
 			       run_bazel build/teamcity/cockroach/nightlies/roachtest_nightly_impl.sh