feat: update to lutaml-model 0.8.0

[ronaldtse]

There are 3 bugs to address:

1. Date time format. lutaml-model uses a variable precision ISO 8601 date format that we don't properly handle.

        ┌─ NORMATIVE DIFFERENCES (62) ─┐
      
        🔍 DIFFERENCE #1/62 [NORMATIVE]
        ──────────────────────────────────────────────────────────────────────
        Dimension: text_content
        Location:  
        Reason:  Text: "2016-04-05T13:43:01.000+02:00" vs "2016-04-05T13:43:01+02:00"
      
        ⊖ Expected (File 1):
           "2016-04-05T13:43:01.000+02:00"
      
        ⊕ Actual (File 2):
           "2016-04-05T13:43:01+02:00"
      
        ✨ Changes:
           Content differs: "2016-04-05T13:43:01.000+02:00" → "2016-04-05T13:43:01+02:00"

Or this:

        2069|    - | ░░░░░░░░<SPEC-OBJECT░IDENTIFIER="rmf-e79cadd7-219e-4cca-acf6-3d81a049fe5e"░LAST-CHANGE="2022-06-22T11:22:38.085+02:00">
            |2069+ | ░░░░░░░░<SPEC-OBJECT░IDENTIFIER="rmf-e79cadd7-219e-4cca-acf6-3d81a049fe5e"░LAST-CHANGE="2022-06-22T11:22:38+02:00">

2. We do not properly handle the XHTML content in XhtmlContent class when there is embedding:

         637| 637  |               <THE-VALUE>
         638|    - | ░░░░░░░░░░░░░░░░<xhtml:div><xhtml:span░style="font-size:░11pt;line-height:░1.5;">The░module░will░embed░SARA░R422S░module░which░support░release░14</xhtml:span></xhtml:div>
            | 638+ | ░░░░░░░░░░░░░░░░<xhtml:div/>

        2971|    - | ░░░░░░░░░░░░░░░░<xhtml:div>A░"<xhtml:span░style="font-size:░10pt;line-height:░1.5;">ModuleAlarmMask</xhtml:span>"░will░be░supported░for░the░customer░to░select░what░alarms░of░the░module░shall░trigger░the░real-time░alarm,░i.e.░the░real-time░alarm░is░activated░if░the░corresponding░bit░of░the░alarm░mask░is░set░to░1.░The░alarm░mask░functions░shall░not░disable░the░real-time░alarms░of░the░host░device.</xhtml:div>
            |2971+ | ░░░░░░░░░░░░░░░░<xhtml:div>A░"</xhtml:div>

3. We need to configure Canon to not show the non-normative output.

e.g. this is identical:

          84|    - | ░░░░░░░░░░░░<ATTRIBUTE-DEFINITION-ENUMERATION
            |  84+ | ░░░░░░░░░░░░<ATTRIBUTE-DEFINITION-ENUMERATION░IDENTIFIER="_0VDX0Mk3Eee5A_N9aQFa1w"░IS-EDITABLE="true"░LAST-CHANGE="2017-11-14T15:44:26.00099999+02:00"░LONG-NAME="IE░Object░Type"░MULTI-VALUED="false">
          85|    - | ░░░░░░░░░░░░░░░░IDENTIFIER="_0VDX0Mk3Eee5A_N9aQFa1w"
          86|    - | ░░░░░░░░░░░░░░░░LAST-CHANGE="2017-11-14T15:44:26.000+02:00"
          87|    - | ░░░░░░░░░░░░░░░░LONG-NAME="IE░Object░Type"
          88|    - | ░░░░░░░░░░░░░░░░IS-EDITABLE="true"
          89|    - | ░░░░░░░░░░░░░░░░MULTI-VALUED="false">

Additional to probably not fix for now

This is a weird bug -- it defines 2 different namespace prefixes for http://www.w3.org/1999/xhtml, so we don't support this yet, i.e.:

• xmlns:xhtml="http://www.w3.org/1999/xhtml"
• xmlns:reqif-xhtml="http://www.w3.org/1999/xhtml"

        ┌─ NORMATIVE DIFFERENCES (1) ─┐
      
        🔍 DIFFERENCE #1/1 [NORMATIVE]
        ──────────────────────────────────────────────────────────────────────
        Dimension: namespace_declarations
        Location:  Location: /REQ-IF[1]
        Reason:  4 vs 4
      
        ⊖ Expected (File 1):
           <REQ-IF> xmlns="http://www.omg.org/spec/ReqIF/20110401/reqif.xsd" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:reqif-xhtml="http://www.w3.org/1999/xhtml"
      
        ⊕ Actual (File 2):
           <REQ-IF> xmlns="http://www.omg.org/spec/ReqIF/20110401/reqif.xsd" xmlns:xhtml="http://www.w3.org/1999/xhtml"
      
        ✨ Changes:
           Removed: -xmlns:reqif-xhtml="http://www.w3.org/1999/xhtml"

            |   1+ | <?xml░version="1.0"░encoding="utf-8"?>
           2|    - | <REQ-IF░xmlns="http://www.omg.org/spec/ReqIF/20110401/reqif.xsd"
            |   2+ | <REQ-IF░xmlns="http://www.omg.org/spec/ReqIF/20110401/reqif.xsd"░xmlns:xhtml="http://www.w3.org/1999/xhtml">
           3|    - | ░░░░xmlns:xhtml="http://www.w3.org/1999/xhtml"░xmlns:reqif-xhtml="http://www.w3.org/1999/xhtml">

...

         129|    - | ░░░░░░░░░░░░░░░░░░<THE-VALUE><reqif-xhtml:div>4e0b143928275e1b.00000440</reqif-xhtml:div></THE-VALUE>
            | 129+ | ░░░░░░░░░░░░░░░░░░<THE-VALUE/>