Flexible version of send HTTP request

[saniyafatima07]

The previous version of issue - #1099 is rigid.
So, made the regex slightly flexible which covers the issue - test_fix262 #2843 (capa)

[saniyafatima07]

@mike-hunhoff Made the regex a bit flexible.
Ran the test case which was failing, it passes now.
Could you please review if this fix works?

Thank you for you time!

[mike-hunhoff]

Nice work @saniyafatima07

[mike-hunhoff]

@saniyafatima07 lints are failing for send HTTP request:

 send HTTP request
  FAIL: rule format incorrect: use scripts/capafmt.py or adjust as follows
  rule:
    meta:
      name: send HTTP request
      namespace: communication/http/client
      authors:
        - moritz.raabe@mandiant.com
        - mehunhoff@google.com
      scopes:
        static: function
        dynamic: span of calls
      mbc:
        - Communication::HTTP Communication::Send Request [C0002.003]
      examples:
        - BFB9B5391A13D0AFD787E87AB90F14F5:0x13145D60
        - 6A352C3E55E8AE5ED39DC1BE7FB964B1:0x100026E0
    features:
      - or:
        - and:
          - or:
            - api: wininet.HttpOpenRequest
            - api: wininet.InternetConnect
          - or:
            - api: wininet.HttpSendRequest
            - api: wininet.HttpSendRequestEx
        - and:
          - api: winhttp.WinHttpSendRequest
          - api: winhttp.WinHttpWriteData
          - optional:
            - or:
              - api: winhttp.WinHttpOpenRequest
              - api: winhttp.WinHttpConnect
        - and:
          - match: send data on socket
-         - and: 
?               -
+         - and:
-             - string: /^(GET|POST|PUT|PATCH|HEAD|DELETE)/i
? --
+           - string: /^(GET|POST|PUT|PATCH|HEAD|DELETE)/i
-             - string: /HTTP\/1\.\d/i
? --
+           - string: /HTTP\/1\.\d/i
        - and:
          - format: dotnet
          - or:
            - api: System.Net.WebRequest::GetResponse
            - api: System.Net.WebRequest::GetResponseAsync
            - api: System.Net.Http.HttpClient::PostAsync
            - api: System.Net.Http.HttpClient::GetAsync
            - api: System.Net.Http.HttpClient::GetByteArrayAsync
            - api: System.Net.Http.HttpClient::GetStreamAsync
            - api: System.Net.Http.HttpClient::GetStringAsync
            - api: System.Net.Http.HttpClient::Send
            - api: System.Net.Http.HttpClient::SendAsync
            - api: System.Net.Http.HttpClientHandler::Send
            - api: System.Net.Http.HttpClientHandler::SendAsync
            - class: System.Net.Http.HttpRequestMessage

[saniyafatima07]

@mike-hunhoff I have fixed the lint error. I forgot to run the lint test during final push, apologies for that.
I wiill make sure to run it in the upcoming prs.
Thank you!