chore(deps): update nginx docker tag to v1.31

.gitea/workflows/build_blog_image.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: linux_amd
     steps:
       - name: Checkout code
-        uses: actions/checkout@v7
+        uses: actions/checkout@v4
         # with:
         #   lfs: 'true'
       - name: Checkout LFS

Dockerfile

@@ -1,5 +1,5 @@
 # Build Stage
-FROM hugomods/hugo:0.161.1 AS build
+FROM hugomods/hugo:0.160.1 AS build
 
 ARG BLOWFISH_VERSION
 
@@ -7,7 +7,7 @@ WORKDIR /opt/blog
 COPY . /opt/blog/
 
 RUN git submodule update --init --recursive && \
-    git -C themes/blowfish/ checkout v2.103.0
+    git -C themes/blowfish/ checkout v2.102.0
 RUN hugo
 
 # Publish Stage