test(http): Add + to encoding test (#45111)
test(http): Add + to encoding test (#45111)

Changes the existing test for query parameter encoding to include the +
symbol and its expected encoding to %2B.

PR Close #45111

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