tests: net: lib: http_server: Rename prototype test suite

"prototype" is ambiguous in this regard, as it doesn't really tell what
the test suite is testing. As tests in this test suite verify core HTTP
server functionality, rename it to "core".

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>

tests/net/lib/http_server/core/CMakeLists.txt

@@ -2,7 +2,7 @@
 
 cmake_minimum_required(VERSION 3.20.0)
 find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
-project(prototype)
+project(server_core)
 
 set(BASE_PATH "../../../../../subsys/net/lib/http/")
 include_directories(${BASE_PATH}/headers)

tests/net/lib/http_server/core/testcase.yaml

@@ -13,4 +13,4 @@ common:
     - native_posix
     - native_posix/native/64
 tests:
-  net.http.server.prototype: {}
+  net.http.server.core: {}