Bump Go from 1.20 to 1.22

Author: tkxkd0159

.github/workflows/release.yml

@@ -21,7 +21,7 @@ jobs:
 
       - uses: actions/setup-go@v5
         with:
-          go-version: '1.20'
+          go-version: '1.22'
 
       - name: Release
         uses: goreleaser/goreleaser-action@v6

.github/workflows/test.yml

@@ -20,7 +20,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v5
         with:
-          go-version: '1.20'
+          go-version: '1.22'
       - name: Display go version
         run: go version
       - name: install tparse
@@ -40,7 +40,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
-          go-version: '1.20'
+          go-version: '1.22'
       - uses: technote-space/get-diff-action@v6.1.0
         id: git_diff
         with:
@@ -95,7 +95,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
-          go-version: '1.20'
+          go-version: '1.22'
       - uses: technote-space/get-diff-action@v6.1.0
         with:
           PATTERNS: |

go.mod

@@ -1,7 +1,5 @@
 go 1.22
 
-toolchain go1.22.4
-
 module github.com/cosmos/ibc-go/v4
 
 retract [v4.0.0, v4.1.0] // depends on SDK version without dragonberry fix