Turn on caching of Build SVT-AV1 and Build libjpeg

.github/workflows/ci.yml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 87f4eed..e4ed957 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -47,7 +47,7 @@
       working-directory: ./ext
       run: bash rav1e.cmd
     - name: Build SVT-AV1
-      #if: steps.cache-ext.outputs.cache-hit != 'true'
+      if: steps.cache-ext.outputs.cache-hit != 'true'
       working-directory: ./ext
       run: bash svt.cmd
     - name: Build libgav1
@@ -59,7 +59,7 @@
       working-directory: ./ext
       run: bash libyuv.cmd
     - name: Build libjpeg
-      # if: steps.cache-ext.outputs.cache-hit != 'true'
+      if: steps.cache-ext.outputs.cache-hit != 'true'
       working-directory: ./ext
       run: bash libjpeg.cmd
     - name: Build GoogleTest