fix(esp_modem): run CI build job for all targets

Also
* removed IDFv4.1 from tests
* added common build_apps.py utility for finding/building apps

ci/build_apps.py

@@ -0,0 +1,60 @@
+# SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
+"""
+This file is used in CI for esp-protocols build tests
+"""
+
+import argparse
+import os
+import sys
+from pathlib import Path
+
+from idf_build_apps import build_apps, find_apps, setup_logging
+from idf_build_apps.constants import SUPPORTED_TARGETS
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(
+        description='Build all projects',
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
+    )
+    parser.add_argument('paths', nargs='+', help='Paths to the apps to build.')
+    parser.add_argument(
+        '-t',
+        '--target',
+        default='all',
+        help='Build apps for given target',
+    )
+    args = parser.parse_args()
+
+    IDF_PATH = os.environ['IDF_PATH']
+
+    print(args.paths)
+    setup_logging(2)
+    apps = find_apps(
+        args.paths,
+        recursive=True,
+        target=args.target,
+        build_dir='build_@t_@w',
+        config_rules_str=[
+            'sdkconfig.ci=default', 'sdkconfig.ci.*=', '=default'
+        ],
+        build_log_path='build_log.txt',
+        size_json_path='size.json',
+        check_warnings=True,
+        preserve=True,
+        manifest_files=[
+            str(p) for p in Path('.').glob('**/.build-test-rules.yml')
+        ],
+        default_build_targets=SUPPORTED_TARGETS,
+        manifest_rootpath='.',
+    )
+
+    for app in apps:
+        print(app)
+
+    sys.exit(
+        build_apps(apps,
+                   dry_run=False,
+                   keep_going=False,
+                   ignore_warning_strs=os.environ['EXPECTED_WARNING']
+                   if 'EXPECTED_WARNING' in os.environ else None))