properly deinit cache

src/network/Runtime.zig

@@ -289,6 +289,8 @@ pub fn deinit(self: *Runtime) void {
         wba.deinit(self.allocator);
     }
 
+    if (self.cache) |*cache| cache.deinit();
+
     globalDeinit();
 }
 

src/network/cache/Cache.zig

@@ -28,6 +28,12 @@ kind: union(enum) {
     fs: FsCache,
 },
 
+pub fn deinit(self: *Cache) void {
+    return switch (self.kind) {
+        inline else => |*c| c.deinit(),
+    };
+}
+
 pub fn get(self: *Cache, arena: std.mem.Allocator, req: CacheRequest) ?CachedResponse {
     return switch (self.kind) {
         inline else => |*c| c.get(arena, req),