Config: fix buildInfo initialization (#47402) (#47456)

* Config: fix buildInfo initialization

* change default to be parseable

* apply default values for buildInfo

(cherry picked from commit 59388bf546)

Co-authored-by: Agnès Toulet <35176601+AgnesToulet@users.noreply.github.com>

packages/grafana-runtime/src/config.ts

@@ -119,7 +119,6 @@ export class GrafanaBootConfig implements GrafanaConfig {
     this.theme2 = createTheme({ colors: { mode } });
     this.theme = this.theme2.v1;
     this.bootData = options.bootData;
-    this.buildInfo = options.buildInfo;
 
     const defaults = {
       datasources: {},
@@ -131,7 +130,7 @@ export class GrafanaBootConfig implements GrafanaConfig {
       appUrl: '',
       appSubUrl: '',
       buildInfo: {
-        version: 'v1.0',
+        version: '1.0',
         commit: '1',
         env: 'production',
       },
@@ -142,6 +141,8 @@ export class GrafanaBootConfig implements GrafanaConfig {
 
     merge(this, defaults, options);
 
+    this.buildInfo = options.buildInfo || defaults.buildInfo;
+
     if (this.dateFormats) {
       systemDateFormats.update(this.dateFormats);
     }