Adjust version constraint to fix BLT updates

[coveralls]

Pull Request Test Coverage Report for Build 3705987629

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 16 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-10.3%) to 39.744%

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Files with Coverage Reduction	New Missed Lines	%
tests/EnvironmentDetectorTest.php	16	41.38%
<!--	Total:	16		-->

Totals
Change from base Build 3661721393:	-10.3%
Covered Lines:	31
Relevant Lines:	78

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💛 - Coveralls