fix: widen browser support by forcing es2019 compat

[belgattitude]

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[changeset-bot]

🦋 Changeset detected

Latest commit: 7b4807c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@httpx/dsn-parser	Patch
@httpx/json-api	Patch

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[codecov]

Codecov Report

Merging #505 (7b4807c) into main (65f03e7) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #505   +/-   ##
=======================================
  Coverage   92.01%   92.01%           
=======================================
  Files          71       71           
  Lines         551      551           
  Branches      116      116           
=======================================
  Hits          507      507           
  Misses         38       38           
  Partials        6        6           

Flag	Coverage Δ
httpx-dsn-parser-unit	100.00% <ø> (ø)
httpx-exception-unit	93.38% <ø> (ø)
httpx-json-api-unit	66.00% <ø> (ø)