Test custom build for 7.0.16 OM release

This commit creates a new branch from the commit on which this PR #223
was created.
And in the new branch we try to consume the custom build that is provided here
https://mongodb.slack.com/archives/C06GQK609CJ/p1752606962170369?thread_ts=1750440836.507499&cid=C06GQK609CJ

Author: viveksinghggits

docker/mongodb-enterprise-ops-manager/Dockerfile.template

@@ -32,7 +32,7 @@ COPY --from=base /data/scripts /opt/scripts
 
 
 {% block static %}
-RUN curl --fail -L -o ops_manager.tar.gz {{ om_download_url }} \
+RUN curl --fail -L -o ops_manager.tar.gz https://mciuploads.s3.amazonaws.com/mms-ops-manager-7.0/mms_ops_manager_7.0_package_rpm_patch_b1ae3910c92229c8371e61df62714858c325b338_687696379e065d0007c0ed60_25_07_15_17_56_11/PACKAGE_OPS_MANAGER/mongodb-mms-7.0.17.501.20250715T1759Z.tar.gz \
   && tar -xzf ops_manager.tar.gz \
   && rm ops_manager.tar.gz \
   && mv mongodb-mms* "${MMS_HOME}"

pipeline.py

@@ -987,7 +987,7 @@ def build_om_image(build_configuration: BuildConfiguration):
     if om_version is None:
         raise ValueError("`om_version` should be defined.")
 
-    om_download_url = os.environ.get("om_download_url", "")
+    om_download_url = "https://mciuploads.s3.amazonaws.com/mms-ops-manager-7.0/mms_ops_manager_7.0_package_rpm_patch_b1ae3910c92229c8371e61df62714858c325b338_687696379e065d0007c0ed60_25_07_15_17_56_11/PACKAGE_OPS_MANAGER/mongodb-mms-7.0.17.501.20250715T1759Z.tar.gz"
     if om_download_url == "":
         om_download_url = find_om_url(om_version)