Add "squash merge" support to merge API #13549

Job	Run time
Check if secrets are available.	2s
Build lakeFS HadoopFS	36s
Generate code from latest lakeFS app	16s
Prepare Spark Apps	37s
Build and push rclone export Docker image	17s
login-to-amazon-ecr	3s
Build and push Docker image	2m 30s
Test lakeFS Hadoop FileSystem	4m 4s
Test lakeFS multipart upload with Hadoop S3A	1m 25s
Test lakeFS with Spark 2.X	5m 55s
Test lakeFS rclone export functionality	29s
Test lakeFS with Spark 3.X	6m 38s
Build metadata client for Spark 3.x	9s
Test metastore client commands using trino	1m 11s
Run latest lakeFS app on AWS S3 (false)	5m 32s
Run latest lakeFS app on AWS S3 DynamoDB KV	5m 13s
Run latest lakeFS app on AWS S3 (true)	7m 27s
Run latest lakeFS app on Google Cloud Platform and Google Cloud Storage	5m 8s
E2E - DynamoDB Local - Local Block Adapter	1m 58s
Test lakeFS against the python wrapper client	1m 51s
Quickstart	2m 20s
Run latest lakeFS app on Azure with Azure blobstore	4m 22s
Run latest lakeFS app on AWS S3 + Basic Auth	4m 46s
Run latest lakeFS app on Azure with Azure Data Lake Storage Gen2 and CosmosDB	20m 57s
Test lakeFS metadata client export with Spark 3.x	1m 38s
Test unified gc	2m 39s
	1h 28m 3s

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