CI: Add MESON_TEST_MAX_FAIL variable

Sets the value to be used for meson test --maxfail. This is useful when
bringing up a new testrunner or generally when debugging some changes
that cause many test failures.

If not set, we set it to 0, meaning disabled.

.gitlab-ci/run-tests.sh

@@ -9,6 +9,7 @@ setup=$2
 suite=$3
 multiplier=${MESON_TEST_TIMEOUT_MULTIPLIER:-1}
 n_processes=${MESON_TEST_MAX_PROCESSES:-1}
+max_fail=${MESON_TEST_MAX_FAIL:-0}
 
 # Ignore memory leaks lower in dependencies
 export LSAN_OPTIONS=suppressions=$srcdir/lsan.supp:print_suppressions=0:detect_leaks=0:allocator_may_return_null=1:symbolize=1
@@ -23,6 +24,7 @@ case "${setup}" in
                 --quiet \
                 --timeout-multiplier "${multiplier}" \
                 --num-processes "${n_processes}" \
+                --maxfail "${max_fail}" \
                 --print-errorlogs \
                 --setup=${setup} \
                 --suite=${suite//,/ --suite=} \
@@ -49,6 +51,7 @@ case "${setup}" in
                 --quiet \
                 --timeout-multiplier "${multiplier}" \
                 --num-processes "${n_processes}" \
+                --maxfail "${max_fail}" \
                 --print-errorlogs \
                 --setup=${setup} \
                 --suite=${suite//,/ --suite=} \
@@ -74,6 +77,7 @@ case "${setup}" in
                 --quiet \
                 --timeout-multiplier "${multiplier}" \
                 --num-processes "${n_processes}" \
+                --maxfail "${max_fail}" \
                 --print-errorlogs \
                 --setup=${setup} \
                 --suite=${suite//,/ --suite=} \