Use better names for engine/KCL tests (#3193)

'serial_test' isn't actually accurate. Two of these tests run in parallel
now. So I renamed it 'kcl_test' as that's what it's actually doing.

In the nextest config, I changed the label from 'serial-integration' to
'uses-engine' because the former isn't true, and also doesn't explain
_why_ it's being limited. The new name explains why we're limiting the
number of tests that can run in parallel.

src-tauri/Cargo.lock

@@ -2571,7 +2571,7 @@ dependencies = [
 
 [[package]]
 name = "kcl-lib"
-version = "0.2.2"
+version = "0.2.3"
 dependencies = [
  "anyhow",
  "approx",
@@ -3520,9 +3520,9 @@ dependencies = [
 
 [[package]]
 name = "phonenumber"
-version = "0.3.5+8.13.36"
+version = "0.3.6+8.13.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f174c8db59b620032bd52b655fc97000458850fec0db35fcd4e802b668517ec0"
+checksum = "11756237b57b8cc5e97dc8b1e70ea436324d30e7075de63b14fd15073a8f692a"
 dependencies = [
  "bincode",
  "either",

src/wasm-lib/.config/nextest.toml

@@ -1,9 +1,7 @@
-# Each test can have at most 4 threads, but if its name contains "serial_test_", then it
-# also requires 4 threads.
-# This means such tests run one at a time, with 4 threads.
-
 [test-groups]
-serial-integration = { max-threads = 4 }
+# If a test uses the engine, we want to limit the number that can run in parallel.
+# This way we don't start and stop too many engine instances, putting pressure on our cloud.
+uses-engine = { max-threads = 4 }
 
 [profile.default]
 slow-timeout = { period = "30s", terminate-after = 1 }
@@ -12,13 +10,15 @@ slow-timeout = { period = "30s", terminate-after = 1 }
 slow-timeout = { period = "50s", terminate-after = 5 }
 
 [[profile.default.overrides]]
-filter = "test(serial_test_)"
-test-group = "serial-integration"
+# If a test starts with kcl_test_, then it uses the engine. So, limit its parallelism.
+filter = "test(kcl_test_)"
+test-group = "uses-engine"
 threads-required = 2
 
 [[profile.ci.overrides]]
-filter = "test(serial_test_)"
-test-group = "serial-integration"
+# If a test starts with kcl_test_, then it uses the engine. So, limit its parallelism.
+filter = "test(kcl_test_)"
+test-group = "uses-engine"
 threads-required = 2
 
 [[profile.default.overrides]]

src/wasm-lib/Cargo.lock

@@ -1851,7 +1851,7 @@ dependencies = [
  "bincode",
  "either",
  "fnv",
- "itertools 0.12.1",
+ "itertools 0.10.5",
  "lazy_static",
  "nom",
  "quick-xml",