feat: add build workflows

- enable fetch-depth for code_checkout
- fetch master branch before checking for changed files
- ensure the clean target is called with the default
- improve makefile failure handling
- ensure VAULT_ADDR is set before VAULT_TOKEN

ci/build.sh

@@ -1,6 +1,7 @@
 #!/bin/bash
 
 # Check for changes in images/ folder and the builds/ folder
+git fetch origin master:master
 if [ "$(git branch --show-current)" = "master" ]; then
   builds_changes=$(git diff --name-only HEAD^...master | grep -E '^builds/')
   images_changes=$(git diff --name-only HEAD^...master | grep -E '^images/')
@@ -11,7 +12,7 @@ fi
 
 # Run `make all` if there are changes in builds/
 if [ -n "$builds_changes" ]; then
-  echo "Changes detected in builds/. Running 'make build-all'..."
+  echo "Changes detected in builds/. Running 'make all'..."
   make all
 fi
 
@@ -20,9 +21,7 @@ if [ -n "$images_changes" ]; then
   echo "Changes detected in images/. Running specific 'make' commands..."
 
   # Extract unique paths for `make` commands
-  for file in $images_changes; do
-    # Get the subdirectory path for the make command (e.g., almalinux/8.10/actionsdind)
-    target=$(echo "$file" | sed -E 's|images/||; s|/[^/]+$||')
+  for target in $(echo $images_changes | sed -E 's|images/||; s|/[^/]+$||' | sort -u); do
     echo "Running 'make $target'..."
     make "$target"
   done