fix: correct stale scummvm.zip and cpc464.rom hashes

RetroDECK had stale buildbot hash a17e0e01 for scummvm.zip
(from old 9.5MB build, current is 79MB) copied to cpc464.rom.
RomM had same stale hash. Updated to current verified values.
All 8 platforms now 100% OK, 0 untested.

mkdocs.yml

@@ -304,9 +304,11 @@ nav:
     - Xenia Canary: emulators/xenia.md
     - yabause: emulators/yabause.md
     - ymir: emulators/ymir.md
-  - Pure libretro (29):
+  - Pure libretro (46):
+    - 00_example: emulators/00_example.md
     - '2048': emulators/2048.md
     - 3DEngine: emulators/3dengine.md
+    - advanced_tests: emulators/advanced_tests.md
     - Arduous: emulators/arduous.md
     - Beetle WonderSwan (Mednafen WonderSwan): emulators/beetle_wswan.md
     - Craft: emulators/craft.md
@@ -329,10 +331,25 @@ nav:
     - Redbook: emulators/redbook.md
     - RemoteJoy: emulators/remotejoy.md
     - ROM Cleaner: emulators/romcleaner.md
+    - test: emulators/test.md
+    - test_netplay: emulators/test_netplay.md
+    - testaudio_callback: emulators/testaudio_callback.md
+    - testaudio_no_callback: emulators/testaudio_no_callback.md
+    - testaudio_playback_wav: emulators/testaudio_playback_wav.md
+    - testgl: emulators/testgl.md
+    - testgl_compute_shaders: emulators/testgl_compute_shaders.md
+    - testgl_ff: emulators/testgl_ff.md
+    - testinput_buttontest: emulators/testinput_buttontest.md
+    - testretroluxury: emulators/testretroluxury.md
+    - testsw: emulators/testsw.md
+    - testsw_vram: emulators/testsw_vram.md
+    - testvulkan: emulators/testvulkan.md
+    - testvulkan_async_compute: emulators/testvulkan_async_compute.md
     - Theodore: emulators/theodore.md
     - The Powder Toy: emulators/thepowdertoy.md
     - MicroW8: emulators/uw8.md
     - uzem: emulators/uzem.md
+    - vidtest: emulators/vidtest.md
     - VirtualXT: emulators/virtualxt.md
   - Game engines (25):
     - boom3: emulators/boom3.md