Bump plugin-check to 1.7.0

[westonruter]

This updates plugin-check fro, 1.6 to 1.7.

However, the update causes a failure:

> phpcs '--' './plugins/performance-lab' '--standard=./plugins/performance-lab/phpcs.xml.dist'
PHP Fatal error:  Uncaught Error: Class "PluginCheckCS\PluginCheck\Helpers\AbstractEscapingCheckSniff" not found in .../wp-content/plugins/performance/vendor/wpackagist-plugin/plugin-check/vendor/plugin-check/phpcs-sniffs/PluginCheck/Sniffs/Security/DirectDBSniff.php:20
Stack trace:
#0 .../wp-content/plugins/performance/vendor/squizlabs/php_codesniffer/autoload.php(173): include()
#1 .../wp-content/plugins/performance/vendor/squizlabs/php_codesniffer/src/Ruleset.php(1401): PHP_CodeSniffer\Autoload::loadFile('/Users/westonru...')
#2 .../wp-content/plugins/performance/vendor/squizlabs/php_codesniffer/src/Ruleset.php(249): PHP_CodeSniffer\Ruleset->registerSniffs(Array, Array, Array)
#3 .../wp-content/plugins/performance/vendor/squizlabs/php_codesniffer/src/Runner.php(348): PHP_CodeSniffer\Ruleset->__construct(Object(PHP_CodeSniffer\Config))
#4 .../wp-content/plugins/performance/vendor/squizlabs/php_codesniffer/src/Runner.php(76): PHP_CodeSniffer\Runner->init()
#5 .../wp-content/plugins/performance/vendor/squizlabs/php_codesniffer/bin/phpcs(14): PHP_CodeSniffer\Runner->runPHPCS()
#6 .../wp-content/plugins/performance/vendor/bin/phpcs(119): include('/Users/westonru...')
#7 {main}
  thrown in .../wp-content/plugins/performance/vendor/wpackagist-plugin/plugin-check/vendor/plugin-check/phpcs-sniffs/PluginCheck/Sniffs/Security/DirectDBSniff.php on line 20

Fatal error: Uncaught Error: Class "PluginCheckCS\PluginCheck\Helpers\AbstractEscapingCheckSniff" not found in .../wp-content/plugins/performance/vendor/wpackagist-plugin/plugin-check/vendor/plugin-check/phpcs-sniffs/PluginCheck/Sniffs/Security/DirectDBSniff.php on line 20

Error: Class "PluginCheckCS\PluginCheck\Helpers\AbstractEscapingCheckSniff" not found in .../wp-content/plugins/performance/vendor/wpackagist-plugin/plugin-check/vendor/plugin-check/phpcs-sniffs/PluginCheck/Sniffs/Security/DirectDBSniff.php on line 20

This needs to be investigated.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.86%. Comparing base (7938a41) to head (8f5b802).

Additional details and impacted files

@@           Coverage Diff           @@
##            trunk    #2257   +/-   ##
=======================================
  Coverage   68.86%   68.86%           
=======================================
  Files          90       90           
  Lines        7610     7610           
=======================================
  Hits         5241     5241           
  Misses       2369     2369           

Flag	Coverage Δ
multisite	68.86% <ø> (ø)
single	35.47% <ø> (ø)

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