fix: add --retry 3 to bun install in Dockerfile

Docker build steps (builder, test-runner, runner stages) also
run bun install and suffer the same transient tarball extraction
failures as the workflow steps.

Dockerfile

@@ -13,7 +13,7 @@ WORKDIR /app
 COPY package*.json ./
 
 # Install dependencies (including dev dependencies for building)
-RUN bun install
+RUN bun install --retry 3
 
 # Copy source code
 COPY . .
@@ -39,7 +39,7 @@ WORKDIR /app
 COPY package*.json ./
 
 # Install ALL dependencies (including dev dependencies for testing)
-RUN bun install
+RUN bun install --retry 3
 
 # Copy source code
 COPY . .
@@ -68,7 +68,7 @@ COPY --from=builder --chown=euchre:euchre /app/bun.lock ./bun.lock
 COPY --from=builder --chown=euchre:euchre /app/prisma ./prisma
 
 # Install only production dependencies
-RUN bun install --production
+RUN bun install --retry 3 --production
 
 # Generate Prisma client
 # Note: We need to set DATABASE_URL even for generation because prisma.config.ts requires it