fullbuildpipeline.py: fix timeout

The problem was found in pipeline:
https://git.seco.com/seco-ne/yocto/manifest/-/jobs/954246

Fix missing update of upstream pipeline status inside while loop.

The timeout in the script was not in sync with the default timeout for build jobs.
Set timeout in __get_build_pipelines() function to 8 hours.

manifest-integration-jobs.yml

@@ -64,7 +64,7 @@ build:
 report-image-diff:
   extends: .infrastructure
   stage: manifest-integration-jobs
-  timeout: 1h
+  timeout: 8h
   needs: ["build"]
   rules:
     # Do not run build if the "skip build" label is set on the merge request

scripts/fullbuildpipeline.py

@@ -61,8 +61,8 @@ class FullBuildPipeline:
             the value is a tuple of downstream jobs.
         """
 
-        timeout = 3000  # 50 min
-        check_interval = 30
+        timeout = 28800  # 8 hours
+        check_interval = 60
 
         not_rdy_status = ["created", "pending", "running"]
         if self.upstream_pipeline.status in not_rdy_status:
@@ -77,6 +77,7 @@ class FullBuildPipeline:
             timeout -= check_interval
             if timeout < 0:
                 sys.exit("timeout")
+            self.upstream_pipeline = self.__get_upstream_pipeline()
 
         ret = {}
         for bridge in self.upstream_pipeline.bridges.list():