[stable/zed] Implement collection release process (#1085)

build: build all images + run tests using them (#1069)
ci: fix promotion jobs (#1072)
[stable/zed] Drop conventional-commit requirement (#1082)
[stable/zed] fix(ipmi-exporter): Ignore additional sensor IDs (BP/Entity Presence) (#1077)
Implement collection release process (#1083)
diff --git a/build/pin-images.py b/build/pin-images.py
index 644d0a2..d35ca65 100755
--- a/build/pin-images.py
+++ b/build/pin-images.py
@@ -126,7 +126,9 @@
     parser.add_argument(
         "src", help="Path for default values file", type=argparse.FileType("r")
     )
-    parser.add_argument("dst", help="Path for output file", type=argparse.FileType("w"))
+    parser.add_argument(
+        "dst", help="Path for output file", type=argparse.FileType("r+")
+    )
     parser.add_argument(
         "-r",
         "--registry",