a9ea4b4126
content aware hash was using --format which isn't present in older, but still supported operating systems. this pr removes the format string which basically reduces the output before hasing to: ```shell 100644 blob 198d80926b6e873c327f71350a0cdefee6a8402f DEPS 040000 tree 139c1f10f92e4b9d4ac3ec7d4d27b2aa9775c5cd engine ``` this format is still stable across all platforms and passed into `git hash-object` - which produces the actual hash fingerprint of the engine. safety: this is the only scripts that produce this hash, so all downstream consumers keep consuming a sha1 output. Since this changes the sha, an engine version shouldn't exist for it and cocoon will build the artifacts for it. fixes: #175265
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