Bump github.com/lib/pq from 1.10.6 to 1.10.9

[dependabot[bot]]

Bumps github.com/lib/pq from 1.10.6 to 1.10.9.

Release notes

Sourced from github.com/lib/pq's releases.

v1.10.9

• Fixes backwards incompat bug with 1.13.
• Fixes pgpass issue

Commits

• 2a217b9 add version check for go 1.15 (#1123)
• d8d93a3 fix handle pgpass (#1120)
• c10fcfe remove stray debugging code
• 96e73eb conn: Implement driver.Validator, SessionResetter for cancelation
• 922c00e Update codeql-analysis.yml
• a2a3173 Update test.yml
• 3a6282f Reduced the complexity of handlePgpass (#1101)
• 133ac67 Improved the performance of CopyIn and CopyInSchema and added BufferQuoteIden...
• d5affd5 Merge pull request #1088 from kelvich/sni_support
• d65e6ae Merge pull request #1083 from nhooyr/fix-receiver-51e2
• Additional commits viewable in compare view

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