fix(deps): Make a explicit dependency on python-dateutil (meltano#2076

)

fix(deps): Make a explicit dependeny on `python-dateutil`

Currently we have a _transitive_ dependency on
[`python-dateutil`](https://github.com/dateutil/dateutil) via [`pendulum`](https://github.com/sdispater/pendulum).

We actually rely on direct calls to its API, so it's better to list it
as an explicit dependency to allow breaking stuff if we ever remove the
dependency on Pendulum.

.github/semantic.yml

@@ -30,4 +30,4 @@ scopes:
   - mappers    # mappers only
   - templates  # cookiecutters
   - deps       # production dependencies
-  - deps-dev   # development depencencies (testing, linting, etc.)
+  - deps-dev   # development dependencies (testing, linting, etc.)

pyproject.toml

@@ -38,8 +38,8 @@ license = "Apache-2.0"
 "Youtube" = "https://www.youtube.com/meltano"
 
 [tool.poetry.dependencies]
-python = ">=3.7.1,<4"
-backoff = ">=2.0.0"
+python = ">=3.7.1"
+backoff = { version = ">=2.0.0", python = "<4" }
 backports-datetime-fromisoformat = { version = ">=2.0.1", python = "<3.11" }
 click = "~=8.0"
 cryptography = ">=3.4.6,<42.0.0"
@@ -53,10 +53,11 @@ jsonschema = [
     { version = ">=4.16.0,<4.18", python = "<3.8" },
     { version = ">=4.16.0", python = ">=3.8" },
 ]
-memoization = ">=0.3.2,<0.5.0"
+memoization = { version = ">=0.3.2,<0.5.0", python = "<4" }
 packaging = ">=23.1"
 pendulum = ">=2.1.0"
 PyJWT = "~=2.4"
+python-dateutil = "^2.8.2"
 python-dotenv = ">=0.20,<0.22"
 pytz = ">=2022.2.1,<2024.0.0"
 PyYAML = ">=6.0"