Chore(deps): Bump github.com/ooni/oohttp from 0.5.2 to 0.6.4

Bumps [github.com/ooni/oohttp](https://github.com/ooni/oohttp) from 0.5.2 to 0.6.4.
- [Release notes](https://github.com/ooni/oohttp/releases)
- [Commits](ooni/oohttp@v0.5.2...v0.6.4)

---
updated-dependencies:
- dependency-name: github.com/ooni/oohttp
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -8,7 +8,7 @@ require (
 	git.tcp.direct/kayos/socks v0.1.3
 	github.com/gdamore/tcell/v2 v2.6.0
 	github.com/miekg/dns v1.1.56
-	github.com/ooni/oohttp v0.5.2
+	github.com/ooni/oohttp v0.6.4
 	github.com/orcaman/concurrent-map/v2 v2.0.1
 	github.com/panjf2000/ants/v2 v2.8.2
 	github.com/refraction-networking/utls v1.5.3

go.sum

@@ -32,8 +32,8 @@ github.com/miekg/dns v1.1.56 h1:5imZaSeoRNvpM9SzWNhEcP9QliKiz20/dA2QabIGVnE=
 github.com/miekg/dns v1.1.56/go.mod h1:cRm6Oo2C8TY9ZS/TqsSrseAcncm74lfK5G+ikN2SWWY=
 github.com/onsi/ginkgo/v2 v2.9.5 h1:+6Hr4uxzP4XIUyAkg61dWBw8lb/gc4/X5luuxN/EC+Q=
 github.com/onsi/gomega v1.27.6 h1:ENqfyGeS5AX/rlXDd/ETokDz93u0YufY1Pgxuy/PvWE=
-github.com/ooni/oohttp v0.5.2 h1:2U5OKi2tQTs9okdEV9FYZTzegI6OIJ86i9WsMDCfTq4=
-github.com/ooni/oohttp v0.5.2/go.mod h1:XRJVx6aCswQrE7Fp3j4d8SjHNh1rPEdhpTyPu3zkyBw=
+github.com/ooni/oohttp v0.6.4 h1:QZyOO4e88AzLOHGTgapXmsjtn1EVR7Wl+BtHd8okIf4=
+github.com/ooni/oohttp v0.6.4/go.mod h1:RipdYAUiw1UTnpm0ISd0r1Kiv/CGaRUgn08xbK1JgVo=
 github.com/orcaman/concurrent-map/v2 v2.0.1 h1:jOJ5Pg2w1oeB6PeDurIYf6k9PQ+aTITr/6lP/L/zp6c=
 github.com/orcaman/concurrent-map/v2 v2.0.1/go.mod h1:9Eq3TG2oBe5FirmYWQfYO5iH1q0Jv47PLaNK++uCdOM=
 github.com/panjf2000/ants/v2 v2.8.2 h1:D1wfANttg8uXhC9149gRt1PDQ+dLVFjNXkCEycMcvQQ=