Switch durability to performance-optimized

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Change-Id: I1fafda13c0fb8dbade3fd7f8464258b484545c9a
diff --git a/mbed-tls-restricted-pr.yaml b/mbed-tls-restricted-pr.yaml
index e8ad39f..e0cc7d9 100644
--- a/mbed-tls-restricted-pr.yaml
+++ b/mbed-tls-restricted-pr.yaml
@@ -39,6 +39,9 @@
         discover-pr-forks-trust: permission
         discover-pr-origin: both
         head-filter-regex: '(?!^PR-(758|759|850|906|916|919)-(merge|head)$)(PR-\d+-(merge|head))'
+        property-strategies:
+          all-branches:
+          - pipeline-branch-durability-override: performance-optimized
         submodule:
           disable: false
           recursive: true