update gotestsum to 1.12.3

On-behalf-of: @SAP [email protected]

Author: xrstf

Makefile

@@ -59,7 +59,7 @@ HTTEST_VER := v0.3.2
 HTTEST_BIN := httest
 HTTEST := $(TOOLS_GOBIN_DIR)/$(HTTEST_BIN)-$(HTTEST_VER)
 
-GOTESTSUM_VER := v1.8.1
+GOTESTSUM_VER := v1.12.3
 GOTESTSUM_BIN := gotestsum
 GOTESTSUM := $(abspath $(TOOLS_DIR))/$(GOTESTSUM_BIN)-$(GOTESTSUM_VER)