[build] Fix invalid cache management by 'dotnet tool restore'. (#15227)

Fix invalid cache management by 'dotnet tool restore' by deleting 'dotnet tool's cache.

Make.config

@@ -518,7 +518,7 @@ MAC_PACKAGE_DMG_DIRNAME="$(MAC_PACKAGE_TITLE)"
 MAC_PACKAGE_UTI=com.$(MAC_PACKAGE_NAME_LOWER).pkg
 MAC_PACKAGE_INSTALL_LOCATION=$(MAC_FRAMEWORK_VERSIONED_DIR)
 
-TT = $(DOTNET) t4
+TT = $(DOTNET) tool restore && $(DOTNET) t4
 
 PRODUCT_KEY_PATH?=$(TOP)/product.snk
 

builds/Makefile

@@ -144,6 +144,8 @@ endif
 	$(Q) touch $@
 
 .stamp-install-t4: $(TOP)/.config/dotnet-tools.json .stamp-download-dotnet-packages
+	@# https://github.com/dotnet/sdk/issues/16165
+	$(Q) rm -f ~/.dotnet/toolResolverCache/*/dotnet-t4
 	$(DOTNET) tool restore
 	$(Q) touch $@