fix: full e2e test failure

The full e2e test run was failing due to double escaping the label
filter which caused the filter to be interpretated as a command. This
change remove the quote from the filter variable value.

Signed-off-by: Richard Case <richard.case@suse.com>

Makefile

@@ -60,7 +60,7 @@ SKIP_RESOURCE_CLEANUP ?= false
 USE_EXISTING_CLUSTER ?= false
 ISOLATED_MODE ?= false
 GINKGO_NOCOLOR ?= false
-GINKGO_LABEL_FILTER ?= "short || full"
+GINKGO_LABEL_FILTER ?= short || full
 
 # to set multiple ginkgo skip flags, if any
 ifneq ($(strip $(GINKGO_SKIP)),)