HOTFIX: Convert encoded HTTP connection variables to http type not https

[AetherUnbound]

Description

With the merge of #3591 and #3572, we started to encounter errors with the data refresh's HTTP steps. When run locally, the HttpOperator steps would raise an exception about how they were unable to find a provider for the connection type https. After looking through the Airflow source code for deserializing providers, we realized that the HTTP Operator is expecting an http prefix (whereas previously https was an allowed prefix when performing the lookup for which connection type to use).

We have code in our entrypoint which transforms connection URIs into URL-encoded https connection types (see: WordPress/openverse-catalog#480), and this was ultimately where we identified a fix. Instead of prefixing those values with https, we prefix them with http, and Airflow behaves as expected with the connections. Since the Airflow documentation for the hook describes that you can use http and https prefixes, we'll still file an issue upstream even though we have this addressed locally.

Testing Instructions

1. Build the new containers with j build
2. Run j api/init && j c
3. Wait until the init is complete, then try to run an audio data refresh. It should succeed whereas on main it did not.

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