test(core): avoid `TemplateFixture` usages in i18n spec (#46571)
test(core): avoid `TemplateFixture` usages in i18n spec (#46571)

This commit further reduces the use of an obsolete `TemplateFixture` class.

PR Close #46571

angular-indonesia/angular,angular/angular,gnomeontherun/angular,gnomeontherun/angular,gnomeontherun/angular,JiaLiPassion/angular,JiaLiPassion/angular,gkalpak/angular,angular-indonesia/angular,angular/angular,gnomeontherun/angular,gkalpak/angular,JiaLiPassion/angular,angular/angular,angular/angular,JiaLiPassion/angular,angular-indonesia/angular,gkalpak/angular,gkalpak/angular,angular-indonesia/angular