chore(deps): update dependency go to v1.23.3

| datasource     | package | from   | to     |
| -------------- | ------- | ------ | ------ |
| golang-version | go      | 1.23.1 | 1.23.3 |


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

Author: renovate[bot]

go.mod

@@ -2,7 +2,7 @@ module github.com/cloudnative-pg/plugin-barman-cloud
 
 go 1.23
 
-toolchain go1.23.1
+toolchain go1.23.3
 
 require (
 	github.com/cloudnative-pg/barman-cloud v0.0.0-20240924124724-92831d48562a