:sparkles: New Features

• 97a7445 - mail: allow setting of mailer identifying name (PR #5363 by @davwheat)

:bug: Bug Fixes

• e3d94f7 - don't push files to git if ignored (PR #5334 by @Fireant456)
• b78026e - auth: handle null SAML authnContext context (commit by @NGPixel)
• 046e4b9 - graphql: remove required flag on MailConfig schema (commit by @NGPixel)
• 1e57773 - mail: typo in admin mail save mutation (commit by @NGPixel)
• 18f9165 - graphql: add missing admin mail name variable to save mutation (commit by @NGPixel)