build(deps): update dependency go to v1.26.0 (#28)

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

Author: renovate[bot]

go.mod

@@ -1,6 +1,6 @@
 module clear-old-cache
 
-go 1.24.13
+go 1.26.0
 
 require (
 	github.com/bradfitz/gomemcache v0.0.0-20230905024940-24af94b03874