Projucer: Disable hardened runtime for LV2 and VST3 helpers

Enabling the hardened runtime also enables library validation, which
means that the manifest generator may not be able to load the built
plugin if the generator runs before the signing step.

The manifest generator tools should not be distributed/archived, so
disabling the hardened runtime for these targets is appropriate.

extras/Projucer/Source/ProjectSaving/jucer_ProjectExport_Xcode.h

@@ -1319,6 +1319,11 @@ public:
             owner.addObject (v);
         }
 
+        bool shouldUseHardenedRuntime() const
+        {
+            return type != VST3Helper && type != LV2Helper && owner.isHardenedRuntimeEnabled();
+        }
+
         //==============================================================================
         String getTargetAttributes() const
         {
@@ -1341,7 +1346,7 @@ public:
                                                                   || owner.getProject().isAUPluginHost());
             capabilities["Push"]                  = owner.isPushNotificationsEnabled();
             capabilities["Sandbox"]               = type == Target::AudioUnitv3PlugIn || owner.isAppSandboxEnabled();
-            capabilities["HardenedRuntime"]       = owner.isHardenedRuntimeEnabled();
+            capabilities["HardenedRuntime"]       = shouldUseHardenedRuntime();
 
             if (owner.iOS && owner.isiCloudPermissionsEnabled())
                 capabilities["com.apple.iCloud"] = true;
@@ -1397,7 +1402,7 @@ public:
             if (owner.isPushNotificationsEnabled()
              || owner.isAppGroupsEnabled()
              || owner.isAppSandboxEnabled()
-             || owner.isHardenedRuntimeEnabled()
+             || shouldUseHardenedRuntime()
              || owner.isNetworkingMulticastEnabled()
              || (owner.isiOS() && owner.isiCloudPermissionsEnabled())
              || (owner.isiOS() && owner.getProject().isAUPluginHost()))
@@ -1687,7 +1692,7 @@ public:
 
             s.set ("CONFIGURATION_BUILD_DIR", addQuotesIfRequired (adjustedConfigBuildDir));
 
-            if (owner.isHardenedRuntimeEnabled())
+            if (shouldUseHardenedRuntime())
                 s.set ("ENABLE_HARDENED_RUNTIME", "YES");
 
             String gccVersion ("com.apple.compilers.llvm.clang.1_0");