Merge bitcoin/bitcoin#33915: test: Retry download in get_previous_releases.py

fad06f3 test: retry download in get_previous_releases.py (MarcoFalke)

Pull request description:

  Hopefully fixes bitcoin/bitcoin#33913 (intermittent download issues)

  If not, the diff there to cache the bins can be considered.

ACKs for top commit:
  davidgumberg:
    ACK bitcoin/bitcoin@fad06f3
  achow101:
    ACK fad06f3
  enirox001:
    ACK fad06f3
  TheCharlatan:
    ACK fad06f3
  janb84:
    ACK fad06f3

Tree-SHA512: 6597e993cc64259e361f65045a938e693b47ff73a7dc22f5a70b6c9890986817849915f90096e3b87684f25152a6d8ae4ec5480c326c32d36273cdb0a33ceb0c

Author: achow101

test/get_previous_releases.py

@@ -168,7 +168,13 @@ def download_binary(tag, args) -> int:
         download_from_url(archive_url, archive)
     except Exception as e:
         print(f"\nDownload failed: {e}", file=sys.stderr)
-        return 1
+        print("Retrying download after failure ...", file=sys.stderr)
+        time.sleep(12)
+        try:
+            download_from_url(archive_url, archive)
+        except Exception as e2:
+            print(f"\nDownload failed a second time: {e2}", file=sys.stderr)
+            return 1
 
     hasher = hashlib.sha256()
     with open(archive, "rb") as afile: