Bump github.com/tektoncd/chains from 0.26.2 to 0.26.3

Bumps [github.com/tektoncd/chains](https://github.com/tektoncd/chains) from 0.26.2 to 0.26.3.
- [Release notes](https://github.com/tektoncd/chains/releases)
- [Changelog](https://github.com/tektoncd/chains/blob/main/releases.md)
- [Commits](tektoncd/chains@v0.26.2...v0.26.3)

---
updated-dependencies:
- dependency-name: github.com/tektoncd/chains
  dependency-version: 0.26.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

go.mod

@@ -28,7 +28,7 @@ require (
 	github.com/sigstore/sigstore v1.10.5
 	github.com/spf13/cobra v1.10.2
 	github.com/spf13/pflag v1.0.10
-	github.com/tektoncd/chains v0.26.2
+	github.com/tektoncd/chains v0.26.3
 	github.com/tektoncd/hub v1.23.6
 	github.com/tektoncd/pipeline v1.11.1
 	github.com/tektoncd/plumbing v0.0.0-20250430145243-3b7cd59879c1

go.sum

@@ -729,8 +729,8 @@ github.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8
 github.com/subosito/gotenv v1.6.0/go.mod h1:Dk4QP5c2W3ibzajGcXpNraDfq2IrhjMIvMSWPKKo0FU=
 github.com/syndtr/goleveldb v1.0.1-0.20220721030215-126854af5e6d h1:vfofYNRScrDdvS342BElfbETmL1Aiz3i2t0zfRj16Hs=
 github.com/syndtr/goleveldb v1.0.1-0.20220721030215-126854af5e6d/go.mod h1:RRCYJbIwD5jmqPI9XoAFR0OcDxqUctll6zUj/+B4S48=
-github.com/tektoncd/chains v0.26.2 h1:Y1D79P14EXKRzF1zzR5jDQPm2QvwjtowzdrqW7kgps8=
-github.com/tektoncd/chains v0.26.2/go.mod h1:W/XPUAuxOI3pm++wKgXI7MW+NB5NSATal0GkuMSkKL0=
+github.com/tektoncd/chains v0.26.3 h1:jTXcUZJIQ1kG75FrgPsAF7lggF56ruFUa8+jUQv26mc=
+github.com/tektoncd/chains v0.26.3/go.mod h1:LyMGYB/wqbwpPOnu5qISz1mrA+DJAyKnx+kz4n7qsaI=
 github.com/tektoncd/pipeline v1.11.1 h1:GjSqggV4EOfCqaWWplEYKqzghqFcpxMWsqLw5mmIAo0=
 github.com/tektoncd/pipeline v1.11.1/go.mod h1:pw9WrX+rauagZMQGzKs9Do8K6BvGDz0/FnoFjZnuCZk=
 github.com/tektoncd/plumbing v0.0.0-20250430145243-3b7cd59879c1 h1:nv7BsOAZ1ifQX9Lw1hYFo1f7e62dTDyyVPJBuljgZKw=

vendor/modules.txt

@@ -1246,8 +1246,8 @@ github.com/syndtr/goleveldb/leveldb/opt
 github.com/syndtr/goleveldb/leveldb/storage
 github.com/syndtr/goleveldb/leveldb/table
 github.com/syndtr/goleveldb/leveldb/util
-# github.com/tektoncd/chains v0.26.2
-## explicit; go 1.25.0
+# github.com/tektoncd/chains v0.26.3
+## explicit; go 1.25.8
 github.com/tektoncd/chains/pkg/artifacts
 github.com/tektoncd/chains/pkg/chains/formats
 github.com/tektoncd/chains/pkg/chains/formats/simple