build(deps): bump github.com/knadh/koanf/v2 in /download-api

Bumps [github.com/knadh/koanf/v2](https://github.com/knadh/koanf) from 2.2.2 to 2.3.3.
- [Release notes](https://github.com/knadh/koanf/releases)
- [Commits](knadh/koanf@v2.2.2...v2.3.3)

---
updated-dependencies:
- dependency-name: github.com/knadh/koanf/v2
  dependency-version: 2.3.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

download-api/go.mod

@@ -5,7 +5,7 @@ go 1.24
 require (
 	github.com/knadh/koanf/providers/confmap v1.0.0
 	github.com/knadh/koanf/providers/env v1.1.0
-	github.com/knadh/koanf/v2 v2.2.2
+	github.com/knadh/koanf/v2 v2.3.3
 )
 
 require (

download-api/go.sum

@@ -8,8 +8,8 @@ github.com/knadh/koanf/providers/confmap v1.0.0 h1:mHKLJTE7iXEys6deO5p6olAiZdG5z
 github.com/knadh/koanf/providers/confmap v1.0.0/go.mod h1:txHYHiI2hAtF0/0sCmcuol4IDcuQbKTybiB1nOcUo1A=
 github.com/knadh/koanf/providers/env v1.1.0 h1:U2VXPY0f+CsNDkvdsG8GcsnK4ah85WwWyJgef9oQMSc=
 github.com/knadh/koanf/providers/env v1.1.0/go.mod h1:QhHHHZ87h9JxJAn2czdEl6pdkNnDh/JS1Vtsyt65hTY=
-github.com/knadh/koanf/v2 v2.2.2 h1:ghbduIkpFui3L587wavneC9e3WIliCgiCgdxYO/wd7A=
-github.com/knadh/koanf/v2 v2.2.2/go.mod h1:abWQc0cBXLSF/PSOMCB/SK+T13NXDsPvOksbpi5e/9Q=
+github.com/knadh/koanf/v2 v2.3.3 h1:jLJC8XCRfLC7n4F+ZKKdBsbq1bfXTpuFhf4L7t94D94=
+github.com/knadh/koanf/v2 v2.3.3/go.mod h1:gRb40VRAbd4iJMYYD5IxZ6hfuopFcXBpc9bbQpZwo28=
 github.com/mitchellh/copystructure v1.2.0 h1:vpKXTN4ewci03Vljg/q9QvCGUDttBOGBIa15WveJJGw=
 github.com/mitchellh/copystructure v1.2.0/go.mod h1:qLl+cE2AmVv+CoeAwDPye/v+N2HKCj9FbZEVFJRxO9s=
 github.com/mitchellh/reflectwalk v1.0.2 h1:G2LzWKi524PWgd3mLHV8Y5k7s6XUvT0Gef6zxSIeXaQ=