refactor: simplify the tests

Author: honzajavorek

sources/academy/webscraping/scraping_basics_javascript/exercises/test.bats

@@ -1,13 +1,9 @@
-setup() {
-  DIR=sources/academy/webscraping/scraping_basics_javascript/exercises
-}
-
 @test "outputs the HTML with Star Wars products" {
-  run npx node "$DIR/lego.mjs"
+  run npx node "$BATS_TEST_DIRNAME/lego.mjs"
   [[ "$output" == *"Millennium Falcon"* ]]
 }
 
 @test "outputs the number of F1 Academy teams" {
-  run npx --package=cheerio node "$DIR/f1academy_teams.mjs"
+  run npx --package=cheerio node "$BATS_TEST_DIRNAME/f1academy_teams.mjs"
   [[ "$output" == "6" ]]
 }

sources/academy/webscraping/scraping_basics_python/exercises/test.bats

@@ -1,8 +1,4 @@
-setup() {
-  DIR=sources/academy/webscraping/scraping_basics_python/exercises
-}
-
 @test "outputs the HTML with Star Wars products" {
-  run uv run --with httpx python "$DIR/lego.py"
+  run uv run --with httpx python "$BATS_TEST_DIRNAME/lego.py"
   [[ "$output" == *"Millennium Falcon"* ]]
 }