typo

autodoc tries to import discovered modules independently from their
runtime use.

As swh/deposit/settings holds multiple runtime settings (including
production), this wrongly tries to load the production one.

This fixes all html documentation generation.

Close T1182
Close D447

autodoc tries to import discovered modules independently from their
runtime use.

As swh/deposit/settings holds multiple runtime settings (including
production), this wrongly tries to load the production one.

This only fixes the local html documentation generation.  This does
not fix the global html documentation generation though.

Related T1182

Related T1152

Related T1123

Related T939

Closes T934

Related T919

Related T919

Summary:
- structured origin_metadata with tool and provider
- used store_metadata function in DepositLoader to add metadata to storage
Note: modification in SWHLoader (loader-core) are in another diff

Reviewers: ardumont

Differential Revision: https://forge.softwareheritage.org/D265