Make compatibility tests run on releases branch and make them run on …

…all previous patch versions (#1074)

.github/workflows/backwards_compatibility_marqo_orchestrator.yml

@@ -5,6 +5,7 @@ on:
   push:
     branches:
       - mainline
+      - releases/*
     paths-ignore:
       - '**.md'
   workflow_dispatch:

tests/backwards_compatibility_tests/scripts/generate_versions.py

@@ -4,17 +4,17 @@
 import subprocess
 import sys
 
-def generate_versions(to_version: str, num_versions: int = 3) -> list:
+def generate_versions(to_version: str, num_minor_versions_to_test: int = 3) -> list:
     """
     Generate a list of previous versions based on the target version.
 
     This function generates a list of previous versions for a given target version.
-    It includes the previous patch version of the same minor version if applicable,
-    and the latest patch versions for preceding minor versions.
+    It includes all the previous patch versions of the same minor version if applicable,
+    and the latest patch versions for preceding minor versions of up to num_minor_versions_to_test.
 
     Args:
         to_version (str): The target version to generate previous versions for.
-        num_versions (int): The number of previous versions to generate. Defaults to 3.
+        num_minor_versions_to_test (int): The number of previous minor versions to generate. Defaults to 3.
 
     Returns:
         list: A list of previous versions as strings.
@@ -24,13 +24,16 @@ def generate_versions(to_version: str, num_versions: int = 3) -> list:
 
     # If this is a patch release, add the previous patch version of the same minor version
     if target_version.patch > 0:
-        prev_patch_version = f"{target_version.major}.{target_version.minor}.{target_version.patch - 1}"
-        versions.append(prev_patch_version)
+        versions.extend(
+            f"{target_version.major}.{target_version.minor}.{i}"
+            for i in range(target_version.patch - 1, -1, -1)
+        )
 
     # Gather the latest patch version for each preceding minor version
     minor = target_version.minor - 1
-    while len(versions) < num_versions and minor >= 0:
-        # Get all tags for the given minor version, sort, and pick the latest patch
+    for _ in range(num_minor_versions_to_test):
+        if minor < 0:
+            break
         tags = subprocess.check_output(
             ["git", "tag", "--list", f"{target_version.major}.{minor}.*"],
             text=True