Expose Google auth token

Expose Google auth token to Google so we can prove we own data.gov.uk.

Ruby 2.7

Merge pull request #835 from alphagov/dependabot/bundler/rails-6.0.3.4

Bump rails from 6.0.3.2 to 6.0.3.4

Update Accessibility Statement

Merge pull request #822 from alphagov/update_accessibility_statement

Update Accessibility statement

v2.16.0: Merge pull request #817 from alphagov/add-accessiibility-support'

Add an accessibility option

Add CKAN maintenance page

Merge pull request #808 from alphagov/add-ckan-maintenance

Add CKAN maintenance page

Rails 6

Merge pull request #805 from alphagov/dependabot/bundler/govuk_publis…

…hing_components-21.61.0

Bump govuk_publishing_components from 21.60.2 to 21.61.0

Clarify contacts details for publishers and consumers

Changes to make contacting publishers and requesting a new publication easier

• Updated copy for Support page - #799
• Clarity for dataset contact links - #769

Technical updates

• Updated markup for homepage - #778
• Dependabot config - #780

Gem updates

• faraday - #747
• elasticsearch - #757
• secure_headers - #777
• govuk_publishing_components - #782
• govuk_elements_rails - #784
• rubocop - #788
• govuk_publishing_components - #791
• Rubocop error fixes - #800

Revert kaminari version to fix search results pages

Merge pull request #776 from alphagov/revert-kaminari-version

Do not upgrade kaminari as it breaks search results

Upgrade ruby buildpack

Merge pull request #775 from alphagov/update-buildpack-1.8.17

Update buildpack to make available ruby 2.6.6

v2.10.0: Merge pull request #727 from alphagov/rubocop.yml-inheritance

rubocop: Set `inherit_mode: merge` for Excludes