VENV: Explicitly activates venv for misra jobs

Change-Id: Ia4284aad06ed91cf379d990bf3e0cc8f1694c46d
Signed-off-by: Matthew Dalzell <matthew.dalzell@arm.com>
diff --git a/coverity/run_coverity.sh b/coverity/run_coverity.sh
index fd26f8a..43da4d4 100755
--- a/coverity/run_coverity.sh
+++ b/coverity/run_coverity.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 #
-# Copyright (c) 2019-2020, Arm Limited. All rights reserved.
+# Copyright (c) 2019-2025, Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -29,6 +29,7 @@
 # Bail out as soon as an error is encountered
 set -e
 
+. ./home/buildslave/.venv/bin/activate
 
 function do_check_tools()
 {
diff --git a/run-eclair-builds.sh b/run-eclair-builds.sh
index 1b7f32c..57eba08 100755
--- a/run-eclair-builds.sh
+++ b/run-eclair-builds.sh
@@ -4,6 +4,8 @@
 
 LICENSE_LEASE=5400
 
+. ./home/buildslave/.venv/bin/activate
+
 . tf-ci-scripts/eclair/utils.sh
 . tf-m-ci-scripts/eclair/utils_tfm.sh