TT#56376 Show selenium/rest-api tests execution time on Jenkins

XML files generated by prove will contain the time we spend in every
test case, it allows us profile our tests and fix the most slop parts.

Change-Id: I965af2d95f57d8975613da0f46ce8abf1be4c114

t/api-rest/testrunner

@@ -46,7 +46,7 @@ RC=0
 
 if [ "${FORMAT}" = "junit" ] ; then
   # shellcheck disable=SC2086
-  prove -ofmv --formatter TAP::Formatter::JUnit -l -It/lib $SELECT | \
+  prove -ofmv --timer --formatter TAP::Formatter::JUnit -l -It/lib $SELECT | \
     tee -a "${OUTPUT_DIRECTORY}/api-rest.xml"
   RC=${PIPESTATUS[0]}
 else

t/selenium/testrunner

@@ -59,7 +59,7 @@ echo "echo -e '$PASSWORD_ENCODED' >/tmp/vncpasswd ; vncviewer geometry=1280x1024
 RC=0
 export CATALYST_SERVER="https://${SERVER}:1443"
 if [ "${OUTPUT_TYPE:-}" = "junit" ] ; then
-  prove -ofvm --formatter TAP::Formatter::JUnit -l -It/lib "${TEST_PLAN[@]}" | \
+  prove -ofvm --timer --formatter TAP::Formatter::JUnit -l -It/lib "${TEST_PLAN[@]}" | \
     tee -a "${OUTPUT_DIRECTORY}/selenium.xml"
   RC="${PIPESTATUS[0]}"
 else