fix: enable use-recent-api-versions bicep lint rule (#11)

* fix: enable use-recent-api-versions bicep lint rule

- Change use-recent-api-versions from off to warning in bicepconfig.json
- Warning (not error) avoids a first-time hard-fail surface since there is
  no CI gate yet to enforce it

* chore: ignore az bicep build output (infra/main.json)

- az bicep build --file infra/main.bicep emits a compiled ARM template
  that was previously untracked; ignore it as generated build output

---------

Co-authored-by: Kim Harjamäki <kim.harjamaki@prosimo.fi>

Author: OgeonX-Ai

.gitignore

@@ -4,4 +4,5 @@
 *.local.bicepparam
 *.whatif.json
 *.whatif.txt
+infra/main.json
 

bicepconfig.json

@@ -33,7 +33,7 @@
         "simplify-interpolation": { "level": "warning" },
         "simplify-json-null": { "level": "warning" },
         "use-parent-property": { "level": "warning" },
-        "use-recent-api-versions": { "level": "off" },
+        "use-recent-api-versions": { "level": "warning" },
         "use-resource-id-functions": { "level": "warning" },
         "use-resource-symbol-reference": { "level": "warning" },
         "use-safe-access": { "level": "warning" },