test(deps): bump conan from 2.28.1 to 2.29.0 in /.devcontainer (#1299)

Bumps [conan](https://github.com/conan-io/conan) from 2.28.1 to 2.29.0.
- [Release notes](https://github.com/conan-io/conan/releases)
- [Commits](conan-io/conan@2.28.1...2.29.0)

---
updated-dependencies:
- dependency-name: conan
  dependency-version: 2.29.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.devcontainer/cpp/requirements.in

@@ -1,3 +1,3 @@
 cmake==4.3.2
-conan==2.28.1
+conan==2.29.0
 gcovr==8.6

.devcontainer/cpp/requirements.txt

@@ -159,7 +159,7 @@ cmake==4.3.2 \
     --hash=sha256:d10648929eb3294449ceae7a7c0b9714ca445280ddc25c209f427e7a07c6f3a9 \
     --hash=sha256:ea95db137fd27f420d5e149c41e1f7621e786869afa3ca0fe18301df9e066607 \
     --hash=sha256:f8f570813753ed4564928cf45c4c13c31e46b3e66b1a07fe695cb9f7b7af185e
-    # via -r requirements.in
+    # via -r cpp/requirements.in
 colorama==0.4.6 \
     --hash=sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44 \
     --hash=sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6
@@ -168,10 +168,10 @@ colorlog==6.10.1 \
     --hash=sha256:2d7e8348291948af66122cff006c9f8da6255d224e7cf8e37d8de2df3bad8c9c \
     --hash=sha256:eb4ae5cb65fe7fec7773c2306061a8e63e02efc2c72eba9d27b0fa23c94f1321
     # via gcovr
-conan==2.28.1 \
-    --hash=sha256:9dea478d853f675a924933771d55434d3fefb4f629b334be37b7c9cacfc3f5b3 \
-    --hash=sha256:e4ed10123751bf2931c32c33cadafe4881c72e1c22a1c97b19cb75780692fae5
-    # via -r requirements.in
+conan==2.29.0 \
+    --hash=sha256:9ead81365d2779eef80c7d772f56a7e12023ac4ee871eb528d4c0f9bf986e908 \
+    --hash=sha256:f617c057fa76a4d92823fa14f9376f520dba72db73f401499737f4a8313ccbe3
+    # via -r cpp/requirements.in
 distro==1.9.0 \
     --hash=sha256:2fa77c6fd8940f116ee1d6b94a2f90b13b5ea8d019b98bc8bafdcabcdd9bdbed \
     --hash=sha256:7bffd925d65168f85027d8da9af6bddab658135b840670a223589bc0c8ef02b2
@@ -183,7 +183,7 @@ fasteners==0.20 \
 gcovr==8.6 \
     --hash=sha256:b2e7042abca9321cadbab8a06eb34d19f801b831557b28cdc30a029313de8b9e \
     --hash=sha256:dbf9d87c38042752ad6f530aa8210427e22b526611bb7b7bfed0e81977d1f1ef
-    # via -r requirements.in
+    # via -r cpp/requirements.in
 idna==3.15 \
     --hash=sha256:048adeaf8c2d788c40fee287673ccaa74c24ffd8dcf09ffa555a2fbb59f10ac8 \
     --hash=sha256:ca962446ea538f7092a95e057da437618e886f4d349216d2b1e294abfdb65fdc