Fixed ansible collection requirement install

install_deps.sh

@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 sudo apt update --yes && sudo apt upgrade --yes
 sudo apt install --yes virtualbox vagrant ansible
-ansible-galaxy install -r ./requirements.yml
+ansible-galaxy collection install -r requirements.yml

requirements.yml

@@ -1,4 +1,4 @@
 ---
 # ansible-galaxy requirements for this repository
 collections:
-  - 'community.postgresql'
+  - community.postgresql