Upgrade dev dependencies; leave more forced placeholders

mkdocs.yaml

@@ -1,4 +1,4 @@
-copyright: "© 2023 ${REPO_OWNER_TITLE}"
+... copyright: "© 2023 ..."
 site_name: "${REPO_NAME}"
 site_description: "${REPO_DESCRIPTION}"
 site_url: "http://${REPO_OWNER_LOWER}.github.io/${REPO_NAME_LOWER}"

pyproject.toml

@@ -9,10 +9,10 @@ build-backend = "setuptools.build_meta"
 name = "${REPO_NAME}"
 description = "${REPO_DESCRIPTION}"
 authors = [
-    { name = "${REPO_OWNER_TITLE}", email = ... },
+    { name = ..., email = ... },
 ]
 maintainers = [
-    { name = "${REPO_OWNER_TITLE}", email = ... },
+    { name = ..., email = ... },
 ]
 requires-python = ">=3.9, <4.0"
 keywords = [
@@ -43,14 +43,14 @@ full = [
     ...
 ]
 dev = [
-    "black==23.3.0",
+    "black==23.7.0",
     "build==0.10.0",
     "coverage[toml]==7.2.7",
     "isort==5.12.0",
-    "mkdocs-material==9.1.17",
+    "mkdocs-material==9.1.18",
     "mkdocstrings[python]==0.22.0",
-    "mypy==1.4.0",
-    "ruff==0.0.275",
+    "mypy==1.4.1",
+    "ruff==0.0.278",
 ]
 
 [project.urls]
@@ -75,9 +75,7 @@ files = [
 warn_unused_configs = true
 strict = true
 show_error_codes = true
-plugins = [
-...
-]
+plugins = []
 
 #######################
 # Unit test coverage: #

requirements/dev.txt

@@ -1,9 +1,9 @@
 -r common.txt
-black==23.3.0
+black==23.7.0
 build==0.10.0
 coverage[toml]==7.2.7
 isort==5.12.0
-mkdocs-material==9.1.17
+mkdocs-material==9.1.18
 mkdocstrings[python]==0.22.0
-mypy==1.4.0
-ruff==0.0.275
+mypy==1.4.1
+ruff==0.0.278