Unset QUARTO_R_QUIET in test that are impacted by it

Author: cderv

tests/testthat/test-quarto-args.R

@@ -24,6 +24,7 @@ test_that("create quiete arg", {
 })
 
 test_that("quarto.quiet options takes over", {
+  withr::local_envvar(list(QUARTO_R_QUIET = NA))
   expect_identical(is_quiet(TRUE), TRUE)
   expect_identical(is_quiet(FALSE), FALSE)
   expect_identical(is_quiet(NA), FALSE)
@@ -63,6 +64,7 @@ test_that("R_QUARTO_QUIET options takes over", {
 })
 
 test_that("quarto.quiet options takes over R_QUARTO_QUIET", {
+  withr::local_envvar(list(R_QUARTO_QUIET = NA))
   withr::with_options(list(quarto.quiet = TRUE), {
     withr::with_envvar(list(R_QUARTO_QUIET = FALSE), {
       expect_identical(is_quiet(TRUE), TRUE)