build(deps): bump github.com/prometheus/sigv4 from 0.2.1 to 0.3.0 (#4685)

Bumps [github.com/prometheus/sigv4](https://github.com/prometheus/sigv4) from 0.2.1 to 0.3.0.
- [Release notes](https://github.com/prometheus/sigv4/releases)
- [Changelog](https://github.com/prometheus/sigv4/blob/main/RELEASE.md)
- [Commits](prometheus/sigv4@v0.2.1...v0.3.0)

---
updated-dependencies:
- dependency-name: github.com/prometheus/sigv4
  dependency-version: 0.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

go.mod

@@ -38,7 +38,7 @@ require (
 	github.com/prometheus/client_model v0.6.2
 	github.com/prometheus/common v0.67.2
 	github.com/prometheus/exporter-toolkit v0.15.0
-	github.com/prometheus/sigv4 v0.2.1
+	github.com/prometheus/sigv4 v0.3.0
 	github.com/rs/cors v1.11.1
 	github.com/shurcooL/httpfs v0.0.0-20230704072500-f1e31cf0ba5c
 	github.com/shurcooL/vfsgen v0.0.0-20230704071429-0000e147ea92

go.sum

@@ -496,8 +496,8 @@ github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4O
 github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
 github.com/prometheus/procfs v0.16.1 h1:hZ15bTNuirocR6u0JZ6BAHHmwS1p8B4P6MRqxtzMyRg=
 github.com/prometheus/procfs v0.16.1/go.mod h1:teAbpZRB1iIAJYREa1LsoWUXykVXA1KlTmWl8x/U+Is=
-github.com/prometheus/sigv4 v0.2.1 h1:hl8D3+QEzU9rRmbKIRwMKRwaFGyLkbPdH5ZerglRHY0=
-github.com/prometheus/sigv4 v0.2.1/go.mod h1:ySk6TahIlsR2sxADuHy4IBFhwEjRGGsfbbLGhFYFj6Q=
+github.com/prometheus/sigv4 v0.3.0 h1:QIG7nTbu0JTnNidGI1Uwl5AGVIChWUACxn2B/BQ1kms=
+github.com/prometheus/sigv4 v0.3.0/go.mod h1:fKtFYDus2M43CWKMNtGvFNHGXnAJJEGZbiYCmVp/F8I=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
 github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=