Update backend.yml (#510)

updating build pipeline to use go 1.25 rather than go 1.23.x. not yet tested, needs testing before approval

Co-authored-by: Patrick Delaney <patrick.del@gmail.com>

Author: astrosnat

.github/workflows/backend.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: [ '1.23.x' ]
+        go-version: [ '1.25.x' ]
     steps:
     - uses: actions/checkout@v4
     - name: Setup Go ${{ matrix.go-version }}
@@ -44,7 +44,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: [ '1.23.x' ]
+        go-version: [ '1.25.x' ]
     steps:
       - uses: actions/checkout@v4
         if: ${{ !startsWith(github.head_ref, 'doc/') }}