[Security] Bump parso from 0.3.3 to 0.5.0

[dependabot-preview]

Bumps parso from 0.3.3 to 0.5.0. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

High severity vulnerability that affects parso
A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution.

Affected versions: <= 0.4.0

Changelog

Sourced from parso's changelog.

0.5.0 (2019-06-20)

• Breaking Change comp_for is now called sync_comp_for for all Python versions to be compatible with the Python 3.8 Grammar
• Added .pyi stubs for a lot of the parso API
• Small FileIO changes

0.4.0 (2019-04-05)

• Python 3.8 support
• FileIO support, it's now possible to use abstract file IO, support is alpha

0.3.4 (2019-02-13)

• Fix an f-string tokenizer error

Commits

• 59df3fa Some small changes to the changelog
• 803cb5f Make parso work at least somewhat with an older Jedi version
• 3fa8630 Use an immutable map for used names, so that it can be use for hashing
• 1ca5ae4 Bump the version number to the next release: 0.5.0
• c3c1616 Ignore positional only arguments slash when listing params
• ecbe2b9 Add positional only arguments to grammar
• 1929c14 Increate the _PICKLE_VERSION to avoid issues with the latest breaking change
• b5d5039 comp_for is now called sync_comp_for for all Python versions to be compatible...
• a7aa23a Parse named expressions
• 5430415 Change a test, because it doesn't really matter
• 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
• @dependabot badge me will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in your Dependabot dashboard:

• Update frequency (including time of day and day of week)
• Pull request limits (per update run and/or open at any time)
• Automerge options (never/patch/minor, and dev/runtime dependencies)
• Out-of-range updates (receive only lockfile updates, if desired)
• Security updates (receive only security updates, if desired)