feat: add support for pnpm

runtimes/8.2/Dockerfile

@@ -30,7 +30,7 @@ RUN apt-get update \
     && curl -sLS https://getcomposer.org/installer | php -- --install-dir=/usr/bin/ --filename=composer \
     && curl -sLS https://deb.nodesource.com/setup_$NODE_VERSION.x | bash - \
     && apt-get install -y nodejs \
-    && npm install -g npm \
+    && curl -fsSL https://get.pnpm.io/install.sh | bash - \
     && curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | gpg --dearmor | tee /etc/apt/keyrings/yarn.gpg >/dev/null \
     && echo "deb [signed-by=/etc/apt/keyrings/yarn.gpg] https://dl.yarnpkg.com/debian/ stable main" > /etc/apt/sources.list.d/yarn.list \
     && curl -sS https://www.postgresql.org/media/keys/ACCC4CF8.asc | gpg --dearmor | tee /etc/apt/keyrings/pgdg.gpg >/dev/null \