feat(ci): use custom image

Dockerfile

@@ -0,0 +1,17 @@
+FROM node:21-alpine
+
+# Install necessary packages
+RUN apk add --no-cache \
+    git \
+    git-lfs \
+    bash
+
+# Install PNPM globally
+RUN npm install -g pnpm
+
+# Display installed versions
+RUN node --version && \
+    npm --version && \
+    git --version && \
+    git-lfs version && \
+    pnpm --version