Update elasticsearch/elasticsearch requirement from ^6.0 to ^6.0 || ^7.0

[dependabot-preview]

Updates the requirements on elasticsearch/elasticsearch to permit the latest version.

Release notes

Sourced from elasticsearch/elasticsearch's releases.

Release 7.0.0

• Requirement of PHP 7.1 instead of 7.0 that is not supported since 1st Jan 2019 #897
• Code refactoring using type hints and return type declarations where possible #897
• Update vendor libraries (PHPUnit 7.5, Symfony YAML 4.3, etc) #897
• Updated all the API endpoints using the latest 7.0.0 specs of Elasticsearch #897
• Added the User-Agent in each HTTP request #898
• Simplified the logging methods logRequestFail($request, $response, $exception)
  and logRequestSuccess($request, $response) in Elasticsearch\Connections\Connection
  #876
• Fix json_encode for unicode(emoji) characters 856
• Fix HTTP port specification using CURLOPT_PORT, not anymore in the host 782

Breaking changes

• Requirement of PHP 7.1 instead of 7.0 that is not supported since 1 Jan 2019.
  See PHP supported version for more information.

• Elasticsearch 7.0 deprecated APIs that accept types, introduced new typeless
  APIs, and removed support for the default mapping. Read this blog post for more information.

• Added type hints and return type declarations where possible #897

Changelog

Sourced from elasticsearch/elasticsearch's changelog.

Release 7.0.0

• Requirement of PHP 7.1 instead of 7.0 that is not supported since 1 Jan 2019.
  #897
• Code refactoring using type hints and return type declarations where possible
  #897
• Update vendor libraries (PHPUnit 7.5, Symfony YAML 4.3, etc)
  #897
• Updated all the API endpoints using the latest 7.0.0 specs of Elasticsearch #897
• Added the User-Agent in each HTTP request #898
• Simplified the logging methods logRequestFail($request, $response, $exception)
  and logRequestSuccess($request, $response) in Elasticsearch\Connections\Connection
  #876
• Fix json_encode for unicode(emoji) characters 856
• Fix HTTP port specification using CURLOPT_PORT, not anymore in the host 782

Testing

Release 6.7.1

• Added track_total_hits in search endpoint 0c9ff47

Release 6.7.0

• Removed requirement of {type} part in indices.put_mapping, see new API specification here
• Added seq_no_primary_term parameter in bulk endpoint #884
• Added include_type_name, if_primary_term, if_seq_no in delete endpoint #884
• Added include_type_name in get, index, indices.create, indices.field.get, indices.get, indices.mapping.get, indices.mapping.getfield, indices.mapping.put, indices.rollover, indices.template.get, indices.template.put endpoints #884
• Added seq_no_primary_term in search endpoint #884
• Added if_primary_term', 'if_seq_noin update endpoint #884

Testing

• Fix tests for PHP 7 with ES 6.7 [5401479

Docs

• [DOCS] Fix doc links in README [5a1782d]

Release 6.5.0

• Remove _suggest endpoint, which has disappeared from ES6 #763
• Fix SearchHitIterator key duplicates #872
• Fixing script get and delete by removing lang from endpoint url #814
• Fix SearchResponseIterator is scrolling the first page twice #871, issue #595

Docs

• [DOCS] Add reference to parse_url() for Extended Host Configuration #778

... (truncated)

Commits

• e8d035b Updated docs + README for 7.0.0
• 5a01a2b Merge branch 'afrozenpeach-master'
• 266bc0c Fixed merge conflict
• 56a7f3d Fixed merge conflict
• e12e308 Merge pull request #898 from ezimuel/feature/user-agent
• eb909cc Fixed CS issues
• 4f8dfab Fixed semicolon in User-Agent
• 1119817 Added User-Agent
• 10a9127 Merge branch 'najdanovicivan-json-encode-patch'
• de3868f Merge branch 'json-encode-patch' of https://github.com/najdanovicivan/elastic...
• Additional commits viewable in compare view

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