update go and linter

Author: aphralG

go.mod

@@ -1,6 +1,8 @@
 module github.com/nginx/agent/v2
 
-go 1.25.7
+go 1.25
+
+toolchain go1.25.7
 
 require (
 	github.com/cenkalti/backoff/v4 v4.2.1 // indirect

sdk/go.mod

@@ -1,6 +1,8 @@
 module github.com/nginx/agent/sdk/v2
 
-go 1.25.7
+go 1.25
+
+toolchain go1.25.7
 
 require (
 	github.com/cenkalti/backoff/v4 v4.2.1

test/integration/go.mod

@@ -1,6 +1,8 @@
 module github.com/nginx/agent/test/integration
 
-go 1.25.7
+go 1.25
+
+toolchain go1.25.7
 
 require (
 	github.com/docker/docker v28.0.1+incompatible

test/integration/vendor/modules.txt

@@ -178,7 +178,7 @@ github.com/moby/term/windows
 ## explicit
 github.com/morikuni/aec
 # github.com/nginx/agent/sdk/v2 v2.0.0-00010101000000-000000000000 => ./../../sdk
-## explicit; go 1.25.7
+## explicit; go 1.25
 github.com/nginx/agent/sdk/v2
 github.com/nginx/agent/sdk/v2/agent/config
 github.com/nginx/agent/sdk/v2/agent/events
@@ -193,7 +193,7 @@ github.com/nginx/agent/sdk/v2/proto/common
 github.com/nginx/agent/sdk/v2/proto/events
 github.com/nginx/agent/sdk/v2/zip
 # github.com/nginx/agent/v2 v2.0.0-00010101000000-000000000000 => ./../../
-## explicit; go 1.25.7
+## explicit; go 1.25
 github.com/nginx/agent/v2/src/core
 github.com/nginx/agent/v2/src/core/config
 github.com/nginx/agent/v2/src/core/network

test/performance/go.mod

@@ -1,6 +1,8 @@
 module github.com/nginx/agent/test/performance
 
-go 1.25.7
+go 1.25
+
+toolchain go1.25.7
 
 require (
 	github.com/gogo/protobuf v1.3.2

test/performance/vendor/modules.txt

@@ -119,7 +119,7 @@ github.com/nats-io/nkeys
 ## explicit
 github.com/nats-io/nuid
 # github.com/nginx/agent/sdk/v2 v2.0.0-00010101000000-000000000000 => ./../../sdk
-## explicit; go 1.25.7
+## explicit; go 1.25
 github.com/nginx/agent/sdk/v2
 github.com/nginx/agent/sdk/v2/agent/config
 github.com/nginx/agent/sdk/v2/agent/events
@@ -134,7 +134,7 @@ github.com/nginx/agent/sdk/v2/proto/common
 github.com/nginx/agent/sdk/v2/proto/events
 github.com/nginx/agent/sdk/v2/zip
 # github.com/nginx/agent/v2 v2.0.0-00010101000000-000000000000 => ./../../
-## explicit; go 1.25.7
+## explicit; go 1.25
 github.com/nginx/agent/v2/src/core
 github.com/nginx/agent/v2/src/core/config
 github.com/nginx/agent/v2/src/core/logger

vendor/modules.txt

@@ -240,9 +240,9 @@ github.com/nats-io/nkeys
 ## explicit
 github.com/nats-io/nuid
 # github.com/nginx/agent/sdk/v2 v2.0.0-00010101000000-000000000000 => ./sdk
-## explicit; go 1.25.7
+## explicit; go 1.25
 # github.com/nginx/agent/v2 v2.0.0-00010101000000-000000000000 => .
-## explicit; go 1.25.7
+## explicit; go 1.25
 # github.com/nginx/nginx-plus-go-client/v3 v3.0.1
 ## explicit; go 1.24.2
 github.com/nginx/nginx-plus-go-client/v3/client