Renovate: Update dependency go to v1.26.3

Author: renovate[bot]

.github/workflows/checks.yaml

@@ -29,7 +29,7 @@ jobs:
         uses: actions/setup-go@v6
         with:
           check-latest: true
-          go-version: 1.26.2
+          go-version: 1.26.3
       - name: Run golangci-lint
         uses: golangci/golangci-lint-action@v9
         with:

.github/workflows/ci.yaml

@@ -32,7 +32,7 @@ jobs:
         uses: actions/setup-go@v6
         with:
           check-latest: true
-          go-version: 1.26.2
+          go-version: 1.26.3
       - name: Build all binaries
         run: make build-all
   code_coverage:
@@ -65,7 +65,7 @@ jobs:
         uses: actions/setup-go@v6
         with:
           check-latest: true
-          go-version: 1.26.2
+          go-version: 1.26.3
       - name: Run tests and generate coverage report
         run: |
           sudo /usr/share/postgresql-common/pgdg/apt.postgresql.org.sh -y

.github/workflows/codeql.yaml

@@ -32,7 +32,7 @@ jobs:
         uses: actions/setup-go@v6
         with:
           check-latest: true
-          go-version: 1.26.2
+          go-version: 1.26.3
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v4
         with: