Windows: test compilation refresh

[sunjayBhatia]

Commit Message:
Windows: test compilation refresh

• Remove TestHeaderMapImplBase constructor that takes a list of
  std::pair<LowerCaseString, std::string>
  • MSVC erroneously treats this as ambiguous. It appears the explicit
    attribute of the LowerCaseString constructor is incorrectly discarded.
    We are able to reproduce this in a minimal example and see that MSVC is wrong
    here: https://godbolt.org/z/VjgsAi
  • To mitigate, remove LowerCaseString based constructor since it is
    only used in tests, tests always use std::string
• Correct use of long in envoy_quic_alarm.cc, explicitly cast to int64_t
  (long on Windows is 32 bits)
• using std::string_literal::operator""s is erroneously rejected by
  MSVC, throwing error C4455.
  • Instead, simply utilize the namespace and continue to use the
    operator as is
  • operator usage could be replaced by std::string (const char* s, size_t n) constructor
  • See https://developercommunity.visualstudio.com/content/problem/270349/warning-c4455-issued-when-using-standardized-liter.html
    and other related duplicate issues that have not yet been resolved.
• Tag tests that fail due to yaml parsing of cf/lf line endings as failing, see Windows: yaml-cpp errors when files are checked out on Windows with CRLF line endings #11659

Additional Description: N/A
Risk Level: Low
Testing: Fixes test compilation on Windows, should be a no-op for other platforms
Docs Changes: N/A
Release Notes: N/A

[sunjayBhatia]

This was introduced by #11546 cc @mattklein123 in case you have more context/if we should not remove this, the PR description has a godbolt.org link that shows the same issue we see on Windows

[sunjayBhatia]

Blocks PR #11107

[sunjayBhatia]

cc @wrowe @davinci26 @nigriMSFT

[wrowe]

Local testing indicates this passes on Windows for //test/... addressing all regressions over the past week. So this is ready for review, and in combination with #11107 the CI for windows will incorporate RBE including testing.