Bump httpx from 1.5.1 to 1.6.0 in /fasp_base

Bumps [httpx](https://gitlab.com/os85/httpx) from 1.5.1 to 1.6.0.
- [Commits](https://gitlab.com/os85/httpx/compare/v1.5.1...v1.6.0)

---
updated-dependencies:
- dependency-name: httpx
  dependency-version: 1.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

fasp_base/Gemfile.lock

@@ -109,7 +109,7 @@ GEM
       activesupport (>= 6.1)
     hashdiff (1.2.0)
     http-2 (1.1.1)
-    httpx (1.5.1)
+    httpx (1.6.0)
       http-2 (>= 1.0.0)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)