ci: update nuget/login action to v1.2.0 (#272)

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

Author: renovate[bot]

.github/workflows/release-please.yml

@@ -178,7 +178,7 @@ jobs:
       
       # Get a short-lived NuGet API key
       - name: NuGet login (OIDC → temp API key)
-        uses: NuGet/login@d22cc5f58ff5b88bf9bd452535b4335137e24544 # v1.1.0
+        uses: NuGet/login@8d196754b4036150537f80ac539e15c2f1028841 # v1.2.0
         id: login
         with:
           user: alxandr