Bump asyncpg from 0.15.0 to 0.21.0

[dependabot[bot]]

Bumps asyncpg from 0.15.0 to 0.21.0.

Release notes

Sourced from asyncpg's releases.

asyncpg v0.21.0

Improvements

• Add support for password functions (useful for RDS IAM auth) (#554) (by Harvey Frye in 1d9457f0 for #554)

• Add support for connection termination listeners (#525) (by @​iomintz in 8141b93c for #525)

• Update CI matrix, aarch64 builds (#595) (by @​Gelbpunkt in ac6a2fcf for #595)

Fixes

• Fix possible uninitalized pointer access on unexpected array message data (CVE-2020-17446, by @​elprans in 69bcdf5b, reported by @​risicle)

• Fix Connection class _copy_in private method (by @​ABCDeath in 7f5c2a24 for #555)

• Bump pgproto to fix compilation issues (by @​elprans in aa67d61b for #565)

• Improve pool documentation examples (#491) (by @​nyurik in 745f8f81 for #491)

• Update usage.rst (#572) (by @​xuedong09 in f5b425ae for #572)

• Fix links in connection documentation (#584) (by @​samuelcolvin in b0813204 for #584)

• Fix usage documentation for hstore (#515) (by @​aaliddell in 39040b3c for #515)

• Fix compiler warnings (by @​elprans in 6cb5ba19)

asyncpg v0.20.0

Improvements

• Support Python 3.8 (by @​1st1 in #504)

• Support PgBouncer by sending only a single SYNC message per query (by @​fvannee in b043fbd3)

... (truncated)

Commits

• 87a4302 asyncpg v0.21.0
• 6cb5ba1 Fix compiler warnings
• 69bcdf5 Fix possible uninitalized pointer access on unexpected array message data
• 39040b3 Fix usage documentation for hstore (#515)
• 8141b93 Add support for connection termination listeners (#525)
• b081320 Fix links in connection documentation (#584)
• f5b425a Update usage.rst (#572)
• 745f8f8 Improve pool documentation examples (#491)
• ac6a2fc Update CI matrix, aarch64 builds (#595)
• aa67d61 Bump pgproto to fix compilation issues
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
• @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
• @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
• @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language

You can disable automated security fix PRs for this repo from the Security Alerts page.