test(gnoland): test content mismatch for addpkg.txtar (#2766)

Updated the test content in `addpkg.txtar` test file to correctly align
with its intended purpose. The test now reflects an addpkg scenario
instead of only test call

<!-- please provide a detailed description of the changes made in this
pull request. -->

<details><summary>Contributors' checklist...</summary>

- [ ] Added new tests, or not needed, or not feasible
- [ ] Provided an example (e.g. screenshot) to aid review or the PR is
self-explanatory
- [ ] Updated the official documentation or not needed
- [ ] No breaking changes were made, or a `BREAKING CHANGE: xxx` message
was included in the description
- [ ] Added references to related issues and PRs
- [ ] Provided any useful hints for running manual tests
- [ ] Added new benchmarks to [generated
graphs](https://gnoland.github.io/benchmarks), if any. More info
[here](https://github.com/gnolang/gno/blob/master/.benchmarks/README.md).
</details>

gno.land/cmd/gnoland/testdata/addpkg.txtar

@@ -1,15 +1,23 @@
 # test for add package
 
-# load hello.gno package located in $WORK directory as gno.land/r/hello
-loadpkg gno.land/r/hello $WORK
-
 ## start a new node
 gnoland start
 
-## execute SayHello
-gnokey maketx call -pkgpath gno.land/r/hello -func SayHello -gas-fee 1000000ugnot -gas-wanted 2000000 -broadcast -chainid=tendermint_test test1
+## deploy realm
+gnokey maketx addpkg -pkgdir $WORK -pkgpath gno.land/r/$USER_ADDR_test1/hello -gas-fee 1000000ugnot -gas-wanted 100000000 -broadcast -chainid=tendermint_test test1
+
+## check output
+stdout OK!
+stdout 'GAS WANTED: 100000000'
+stdout 'GAS USED:   \d+'
+stdout 'HEIGHT:     \d+'
+stdout 'EVENTS:     \[\]'
+stdout 'TX HASH:    '
+
+## call added realm
+gnokey maketx call -pkgpath gno.land/r/$USER_ADDR_test1/hello -chainid=tendermint_test -func SayHello -gas-fee 1000000ugnot -gas-wanted 2000000 -broadcast test1
 
-## compare SayHello
+## check output
 stdout '\("hello world!" string\)'
 stdout OK!
 stdout 'GAS WANTED: 2000000'