Fix build tags for generated conversion code

Author: sbueringer

Makefile

@@ -460,6 +460,7 @@ generate-go-conversions-core-exp: $(CONVERSION_GEN) ## Generate conversions go c
 		--input-dirs=./internal/apis/core/exp/v1alpha4 \
 		--input-dirs=./internal/apis/core/exp/addons/v1alpha3 \
 		--input-dirs=./internal/apis/core/exp/addons/v1alpha4 \
+		--build-tag=ignore_autogenerated_core_exp \
 		--extra-peer-dirs=sigs.k8s.io/cluster-api/internal/apis/core/v1alpha3 \
 		--extra-peer-dirs=sigs.k8s.io/cluster-api/internal/apis/core/v1alpha4 \
 		--output-file-base=zz_generated.conversion $(CONVERSION_GEN_OUTPUT_BASE) \
@@ -470,6 +471,7 @@ generate-go-conversions-core-exp-ipam: $(CONVERSION_GEN) ## Generate conversions
 	$(MAKE) clean-generated-conversions SRC_DIRS="./$(EXP_DIR)/ipam/api/v1alpha1"
 	$(CONVERSION_GEN) \
 		--input-dirs=./$(EXP_DIR)/ipam/api/v1alpha1 \
+		--build-tag=ignore_autogenerated_core_exp_ipam \
 		--output-file-base=zz_generated.conversion $(CONVERSION_GEN_OUTPUT_BASE) \
 		--go-header-file=./hack/boilerplate/boilerplate.generatego.txt
 
@@ -479,7 +481,7 @@ generate-go-conversions-core-runtime: $(CONVERSION_GEN) ## Generate conversions
 	$(CONVERSION_GEN) \
 		--input-dirs=./internal/runtime/test/v1alpha1 \
 		--input-dirs=./internal/runtime/test/v1alpha2 \
-		--build-tag=ignore_autogenerated_runtime \
+		--build-tag=ignore_autogenerated_core_runtime \
 		--output-file-base=zz_generated.conversion $(CONVERSION_GEN_OUTPUT_BASE) \
 		--go-header-file=./hack/boilerplate/boilerplate.generatego.txt