It's not for version 1.20.4, but in version 1.18.2, I was able to achieve this using the texture atlas and TextureAtlasSprite as follows:
 
	Rendering the fire (fire_0) texture in screen:
 
private void renderTexture(PoseStack poseStack, int x, int y, int width, int height){
    ResourceLocation BLOCK_ATLAS = new ResourceLocation("minecraft", "textures/atlas/blocks.png");
    ResourceLocation fireTexture = new ResourceLocation("minecraft", "block/fire_0");
    RenderSystem.setShaderTexture(0, BLOCK_ATLAS);
    TextureAtlasSprite sprite = Minecraft.getInstance().getTextureAtlas(BLOCK_ATLAS).apply(fireTexture);
    GuiComponent.blit(poseStack, x, y, 0,  width, height, sprite);
}
	Since the specifications may have changed in version 1.20.4, I'm not sure if the same approach will work. 
	However, I hope this information helps as a reference.