CHORE: Cleanup unwanted files and correct coveragerc (#186)

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[AB#38484](https://sqlclientdrivers.visualstudio.com/c6d89619-62de-46a0-8b46-70b92a84d85e/_workitems/edit/38484)

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### Summary   
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This pull request updates the `.coveragerc` configuration to refine
which files are omitted from coverage analysis. The main change is
broadening the omission list to exclude additional top-level files from
coverage reports.

Coverage configuration updates:

* Added `main.py`, `setup.py`, `bcp_options.py`, and
`testing_ddbc_bindings.py` to the omit list in `.coveragerc`, ensuring
these files are not included in coverage calculations.

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Author: bewithgaurav

.coveragerc

@@ -1,6 +1,8 @@
 [run]
 omit =
-    mssql_python/testing_ddbc_bindings.py
+    main.py
+    setup.py
+    bcp_options.py
     tests/*
 
 [report]

.github/workflows/pr-format-check.yml

@@ -57,9 +57,9 @@ jobs:
               // Extract the summary content
               const summaryContent = summaryMatch[1];
 
-              // Remove all HTML comments including the template placeholder
+              // Remove all HTML comments including unclosed ones (template placeholders)
               const contentWithoutComments = 
-                summaryContent.replace(/<!--[\s\S]*?-->/g, '');
+                summaryContent.replace(/<!--[\s\S]*?(?:-->|$)/g, '');
 
               // Remove whitespace and check if there's actual text content
               const trimmedContent = contentWithoutComments.trim();

.gitignore

@@ -1,6 +1,3 @@
-# Ignore all files in the pybind/build directory
-mssql_python/pybind/build/
-
 # Ignore pycache files and folders
 __pycache__/
 **/__pycache__/
@@ -23,6 +20,7 @@ test-*.xml
 
 # Ignore the build & mssql_python.egg-info directories
 build/
+**/build/
 mssql_python.egg-info/
 
 # Python bytecode
@@ -46,4 +44,19 @@ build/
 *.swp
 
 # .DS_Store files
-.DS_Store
+.DS_Store
+
+# wheel files
+*.whl
+*.tar.gz
+*.zip
+
+# Dockerfiles and images (root only)
+/Dockerfile*
+/docker-compose.yml
+/docker-compose.override.yml
+/docker-compose.*.yml
+
+# Virtual environments
+*venv*/
+**/*venv*/