Add sosreport packaging documentation

sosreport_packaging.md

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+This document is a collection of information on how we go about building the sosreport package and the process of building a new version and then potentially doing a SRU. The main purpose of this document is so that anyone would be able to pick this up, if any one leaves the small team that is looking after sosreport.
+
+# Building a tagged release from git
+
+
+
+
+
+
+# Some rough notes
+
+```
+debuild -i -us -uc -b
+```
+
+To attempt to build it locally
+
+```
+dpkg-buildpackage -b -us -uc -rfakeroot -m --build-by="arif.ali@canonical.com"
+```
+
+This will attempt to build the package locally with the email provided, and the version that is specified in `debian/changelog`. As of writing this piece of the document, this came out to be
+
+```
+sosreport_4.6.0-0ubuntu1_amd64.deb
+```
+
+This is great for testing locally, but once we are happy that this is working then we need to use the Launchpad way to upload the `source.changes file which will then allow LP to build and the package to be available for testing purposes.
+
+# New release from pull-lp-source
+
+First grab the latest version for a series
+
+```
+pull-lp-source sosreport jammy
+```
+
+Then run uscan, which wil download the latest from github, with the debian folder from lp
+
+```
+uscan
+cd sosreport-4.6.1
+```
+
+Now update the changelog, to make any changes
+
+```
+vi debian/changelog
+```
+
+Now build the source changes file
+
+```
+dpkg-buildpackage -S --build-by="arif.ali@canonical.com”
+```
+
+Finally push the source.changes to publish the package in the PPA
+
+```
+dput ppa:arif-ali/sosreport ../sosreport_4.6.1-0ubuntu1~22.04.1_source.changes
+```