release: bump 0.5.3 -> 0.5.4 (#176)

Version bump 0.5.3 -> 0.5.4 for the release that ships the 19 external-feature-coverage indicators (#175, 377 -> 396).

Bumped: Cargo workspace + wickra-core dep, Cargo.lock (cargo build), pyproject.toml, node package.json (+6 optionalDependencies), 6 npm platform package.json, both package-lock.json, CHANGELOG ([Unreleased] -> [0.5.4]).

fmt/test/clippy green locally.

Cargo.lock

@@ -1867,7 +1867,7 @@ dependencies = [
 
 [[package]]
 name = "wickra"
-version = "0.5.3"
+version = "0.5.4"
 dependencies = [
  "approx",
  "criterion",
@@ -1878,7 +1878,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-core"
-version = "0.5.3"
+version = "0.5.4"
 dependencies = [
  "approx",
  "proptest",
@@ -1888,7 +1888,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-data"
-version = "0.5.3"
+version = "0.5.4"
 dependencies = [
  "approx",
  "csv",
@@ -1915,7 +1915,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-node"
-version = "0.5.3"
+version = "0.5.4"
 dependencies = [
  "napi",
  "napi-build",
@@ -1925,7 +1925,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-python"
-version = "0.5.3"
+version = "0.5.4"
 dependencies = [
  "numpy",
  "pyo3",
@@ -1934,7 +1934,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-wasm"
-version = "0.5.3"
+version = "0.5.4"
 dependencies = [
  "console_error_panic_hook",
  "js-sys",