fix: install ansible galaxy deps as ansible user

Dockerfile

@@ -6,6 +6,19 @@ ENV PYTHONUNBUFFERED=1 \
     LC_ALL="C.UTF-8" \
     LC_CTYPE="C.UTF-8"
 
+# Create app directory
+RUN set -eux; \
+    mkdir /app
+WORKDIR /app
+
+# Create user for ssh
+RUN <<EOF
+    set -eux
+    useradd -m ansible
+    mkdir -p /home/ansible/.ssh
+    chown -R ansible:ansible /home/ansible/.ssh
+EOF
+
 # Install runtime dependencies
 RUN <<EOF
     set -eux
@@ -14,21 +27,16 @@ RUN <<EOF
     rm -rf /var/lib/apt/lists/*
 EOF
 
-# Install ansible dependencies
+# Install python dependencies
 COPY overlay/ /
 RUN <<EOF
     set -eux
     pip install -r /opt/buildpack/requirements.txt
-    ansible-galaxy collection install -r /opt/buildpack/requirements.yaml
 EOF
 
-# Create app directory
-RUN set -eux; \
-    mkdir /app
-WORKDIR /app
-
-# Create user for ssh
-RUN useradd -m ansible
-RUN mkdir -p /home/ansible/.ssh
-RUN chown -R ansible:ansible /home/ansible/.ssh
-USER ansible
+# Install ansible dependencies
+USER ansible
+RUN <<EOF
+    set -eux
+    ansible-galaxy collection install -r /opt/buildpack/requirements.yaml
+EOF