fix: use mcpplibs-tinyhttps package in test targets

Replace add_deps("tinyhttps") with add_packages("mcpplibs-tinyhttps")
in test targets since tinyhttps was extracted to a standalone package.
This fixes package install failures where the local tinyhttps target
was not found.

Author: Sunrisepeak

tests/tinyhttps/xmake.lua

@@ -3,46 +3,46 @@ target("test_socket")
     set_languages("c++23")
     set_policy("build.c++.modules", true)
     add_files("test_socket.cpp")
-    add_deps("tinyhttps")
+    add_packages("mcpplibs-tinyhttps")
 
 target("test_tls")
     set_kind("binary")
     set_languages("c++23")
     set_policy("build.c++.modules", true)
     add_files("test_tls.cpp")
-    add_deps("tinyhttps")
+    add_packages("mcpplibs-tinyhttps")
 
 target("test_http")
     set_kind("binary")
     set_languages("c++23")
     set_policy("build.c++.modules", true)
     add_files("test_http.cpp")
-    add_deps("tinyhttps")
+    add_packages("mcpplibs-tinyhttps")
 
 target("test_sse")
     set_kind("binary")
     set_languages("c++23")
     set_policy("build.c++.modules", true)
     add_files("test_sse.cpp")
-    add_deps("tinyhttps")
+    add_packages("mcpplibs-tinyhttps")
 
 target("test_http_stream")
     set_kind("binary")
     set_languages("c++23")
     set_policy("build.c++.modules", true)
     add_files("test_http_stream.cpp")
-    add_deps("tinyhttps")
+    add_packages("mcpplibs-tinyhttps")
 
 target("test_proxy")
     set_kind("binary")
     set_languages("c++23")
     set_policy("build.c++.modules", true)
     add_files("test_proxy.cpp")
-    add_deps("tinyhttps")
+    add_packages("mcpplibs-tinyhttps")
 
 target("test_integration")
     set_kind("binary")
     set_languages("c++23")
     set_policy("build.c++.modules", true)
     add_files("test_integration.cpp")
-    add_deps("tinyhttps")
+    add_packages("mcpplibs-tinyhttps")