refactor(@angular/build): reduce inline style language value per call usage

packages/angular/build/src/tools/esbuild/angular/compiler-plugin.ts

@@ -130,6 +130,7 @@ export function createCompilerPlugin(
       // Track incremental component stylesheet builds
       const stylesheetBundler = new ComponentStylesheetBundler(
         styleOptions,
+        styleOptions.inlineStyleLanguage,
         pluginOptions.incremental,
       );
       let sharedTSCompilationState: SharedTSCompilationState | undefined;
@@ -190,8 +191,8 @@ export function createCompilerPlugin(
               stylesheetResult = await stylesheetBundler.bundleInline(
                 data,
                 containingFile,
-                // Inline stylesheets from a template style element are always CSS
-                containingFile.endsWith('.html') ? 'css' : styleOptions.inlineStyleLanguage,
+                // Inline stylesheets from a template style element are always CSS; Otherwise, use default.
+                containingFile.endsWith('.html') ? 'css' : undefined,
                 // When external runtime styles are enabled, an identifier for the style that does not change
                 // based on the content is required to avoid emitted JS code changes. Any JS code changes will
                 // invalid the output and force a full page reload for HMR cases. The containing file and order
@@ -490,7 +491,6 @@ export function createCompilerPlugin(
           build,
           stylesheetBundler,
           additionalResults,
-          styleOptions.inlineStyleLanguage,
           pluginOptions.loadResultCache,
         );
       }

packages/angular/build/src/tools/esbuild/angular/component-stylesheets.ts

@@ -33,6 +33,7 @@ export class ComponentStylesheetBundler {
    */
   constructor(
     private readonly options: BundleStylesheetOptions,
+    private readonly defaultInlineLanguage: string,
     private readonly incremental: boolean,
   ) {}
 
@@ -63,7 +64,12 @@ export class ComponentStylesheetBundler {
     );
   }
 
-  async bundleInline(data: string, filename: string, language: string, externalId?: string) {
+  async bundleInline(
+    data: string,
+    filename: string,
+    language = this.defaultInlineLanguage,
+    externalId?: string,
+  ) {
     // Use a hash of the inline stylesheet content to ensure a consistent identifier. External stylesheets will resolve
     // to the actual stylesheet file path.
     // TODO: Consider xxhash instead for hashing

packages/angular/build/src/tools/esbuild/angular/jit-plugin-callbacks.ts

@@ -66,7 +66,6 @@ export function setupJitPluginCallbacks(
   build: PluginBuild,
   stylesheetBundler: ComponentStylesheetBundler,
   additionalResultFiles: Map<string, { outputFiles?: OutputFile[]; metafile?: Metafile }>,
-  inlineStyleLanguage: string,
   loadCache?: LoadResultCache,
 ): void {
   const root = build.initialOptions.absWorkingDir ?? '';
@@ -114,11 +113,7 @@ export function setupJitPluginCallbacks(
       if (entry.contents === undefined) {
         stylesheetResult = await stylesheetBundler.bundleFile(entry.path);
       } else {
-        stylesheetResult = await stylesheetBundler.bundleInline(
-          entry.contents,
-          entry.path,
-          inlineStyleLanguage,
-        );
+        stylesheetResult = await stylesheetBundler.bundleInline(entry.contents, entry.path);
       }
 
       const { contents, outputFiles, errors, warnings, metafile, referencedFiles } =