fix(deps): update module go.opentelemetry.io/build-tools/multimod to v0.26.0 (#375)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

internal/tools/go.mod

@@ -2,7 +2,7 @@ module go.opentelemetry.io/proto/internal/tools
 
 go 1.23.0
 
-require go.opentelemetry.io/build-tools/multimod v0.25.0
+require go.opentelemetry.io/build-tools/multimod v0.26.0
 
 require (
 	dario.cat/mergo v1.0.2 // indirect

internal/tools/go.sum

@@ -112,8 +112,8 @@ github.com/xanzy/ssh-agent v0.3.3 h1:+/15pJfg/RsTxqYcX6fHqOXZwwMP+2VyYWJeWM2qQFM
 github.com/xanzy/ssh-agent v0.3.3/go.mod h1:6dzNDKs0J9rVPHPhaGCukekBHKqfl+L3KghI1Bc68Uw=
 go.opentelemetry.io/build-tools v0.26.0 h1:Cx7AYGuVUVLm0vo/ZwRTe1o9j+6hw3sYNszQF1xw8D4=
 go.opentelemetry.io/build-tools v0.26.0/go.mod h1:jNTizn3nCttVe/F8xFQsZmIWAF+RhOhcq9xqImVkDAs=
-go.opentelemetry.io/build-tools/multimod v0.25.0 h1:N2tGiVOec9zcUvCcclQH1vE1ytJudbgZ9J6g4wRtKUQ=
-go.opentelemetry.io/build-tools/multimod v0.25.0/go.mod h1:Nepiu8ezM9wELLbvEr6QaYRTrznsVp9bovVUFl9GaYs=
+go.opentelemetry.io/build-tools/multimod v0.26.0 h1:PvMXqov0+e3812IgQWs2dKWm4KC0TocZ5bDtUPVgvT4=
+go.opentelemetry.io/build-tools/multimod v0.26.0/go.mod h1:Lq9nuRQSB25G0SgR7zBnC9pnnAc16n/JqRsE0GlQRZE=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
 go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
 golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=