chore(deps): bump smallvec in /tests/e2e/fixtures/simple-cargo

Bumps [smallvec](https://github.com/smallvec/smallvec) from 1.6.0 to 1.6.1.
- [Release notes](https://github.com/smallvec/smallvec/releases)
- [Commits](smallvec/smallvec@v1.6.0...v1.6.1)

---
updated-dependencies:
- dependency-name: smallvec
  dependency-version: 1.6.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

tests/e2e/fixtures/simple-cargo/Cargo.lock

@@ -7,4 +7,4 @@ publish = false
 [dependencies]
 # Pinned to a release affected by GHSA-43w2-9j62-hq99 (insert_many buffer
 # overflow), so reachability has a known vulnerability to analyze.
-smallvec = "=1.6.0"
+smallvec = "=1.6.1"